2025/08/05 更新

写真a

ウメモト ヤスノリ
梅本 安則
所属
医学部 リハビリテーション医学講座 教授
職名
教授
プロフィール

リハビリテーション医学を専門とし、各臓器の機能障害や能力障害および活動の診断・治療を研究分野としています。その中でも運動や温熱が人体に与える影響などを中心に研究活動をしています。

外部リンク

研究キーワード

  • 運動療法

  • 温熱刺激

  • 口腔機能

  • 運動生理学

  • マイオカイン

  • リハビリテーション医学

  • 脊髄損傷

  • 脳卒中

研究分野

  • ライフサイエンス / リハビリテーション科学

学歴

  • 和歌山県立医科大学   大学院医学研究科   リハビリテーション医学

    2007年4月 - 2011年3月

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    国名: 日本国

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  • 和歌山県立医科大学   医学部

    1999年4月 - 2005年3月

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経歴

  • 横浜市立大学医学部   リハビリテーション科学   准教授   医師、医学博士

    2023年4月 - 現在

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    国名:日本国

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  • 和歌山県立医科大学   リハビリテーション科   講師   医師、医学博士

    2017年12月 - 2022年3月

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    国名:日本国

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所属学協会

  • 日本急性期リハビリテーション医学会

    2017年10月 - 現在

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  • 日本脊髄障害医学会

    2009年

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  • 日本リハビリテーション医学会

    2007年6月 - 現在

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委員歴

  • 日本急性期リハビリテーション医学会   代議員  

    2019年 - 現在   

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    団体区分:学協会

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  • 日本リハビリテーション医学会   代議員  

    2019年 - 現在   

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    団体区分:学協会

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論文

  • Observations of cold-induced vasodilation in persons with spinal cord injuries. 国際誌

    Yasuhisa Fujita, Yoshi-Ichiro Kamijo, Tokio Kinoshita, Takamasa Hashizaki, Kouta Murai, Tatsuya Yoshikawa, Yasunori Umemoto, Chikako Kaminaka, Manabu Shibasaki, Fumihiro Tajima, Yukihide Nishimura

    Spinal cord   2024年2月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    STUDY DESIGN: Acute experimental study. OBJECTIVES: Cold-induced vasodilation is a local mechanism of protection against frostbite in non-injured persons. We assessed whether an increase in skin blood flow (SkBF) during local cooling (LC) was observed in individuals with spinal cord injuries (SCIs) and if the response patterns differed between region levels or sites. SETTING: Laboratory of Wakayama Medical University and the affiliated clinics, Japan. METHODS: A local cooler device (diameter 4 cm) was placed on the chest (sensate) and right thigh (non-sensate) in persons with cervical (SCIC; n = 9) and thoracolumbar SCIs (SCITL; n = 9). After the surface temperature under the device was controlled at 33 °C for 10 min (baseline), LC (-0.045 °C/s) was applied and the skin temperature was maintained at 15 and 8 °C for 15 min of each stage. SkBF (laser Doppler flowmetry) was monitored using a 1-mm needle-type probe inserted into its center. RESULTS: The percent change in SkBF (%ΔSkBF) on the chest remained unchanged until the end of 15 °C stage; thereafter, it increased to a level at least 70% greater than the baseline during the 8 °C stage in both groups. The %ΔSkBF on the thigh in both SCIC and SCITL notably increased from 8 and 6 min respectively, during the 8°C stage, compared to 1 min before the stage; however, it did not exceed the baseline level. CONCLUSIONS: An increase in SkBF during LC was observed both in the sensate and non-sensate areas in SCIs, although the magnitude was larger in the sensate area.

    DOI: 10.1038/s41393-024-00960-3

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  • Increase in Serum Interleukin-1 Receptor Antagonist (IL-1ra) Levels after Wheelchair Half Marathon Race in Male Athletes with Spinal Cord Injury. 国際誌

    Masumi Nakahama-Matsushima, Yoshi-Ichiro Kamijyo, Yasunori Umemoto, Takamasa Hashizaki, Yukihide Nishimura, Kazunari Furusawa, Yohei Furotani, Fumihiro Tajima, Ken Kouda

    Journal of clinical medicine   12 ( 22 )   2023年11月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    Exercise increases the serum level of interleukin-6 (IL-6), which in turn stimulates the production of various inflammatory cytokine antagonists, such as interleukin-1 receptor antagonist (IL-1ra). Individuals with cervical spinal cord injury (CSCI) are at high risk of inflammatory conditions. This study compared the effects of wheelchair half marathon on the immune system of male athletes with CSCI and those with thoracic/lumber spinal cord injury (SCI). Neutrophil count, IL-1ra, IL-6, and various endocrine parameters were measured before, immediately and 1 h after the race in five CSCI and six SCI who completed the wheelchair marathon race. The percentage of neutrophils was significantly higher in CSCI immediately and 1 h after the race, compared with the baseline, and significantly higher in SCI at 1 h after the race. IL-6 was significantly higher immediately and 1 h after the race in SCI, whereas no such changes were noted in IL-6 in CSCI. IL-1ra was significantly higher at 1 h after the race in both SCI and CSCI. The race was associated with an increase in IL-1ra in both CSCI and SCI. These findings suggest wheelchair half marathon race increases IL-1ra even under stable IL-6 status in male CSCI individuals, and that such post-race increase in IL-1ra is probably mediated through circulatory neutrophils.

    DOI: 10.3390/jcm12227098

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  • Effects of continuous bicycle ergometer and step exercises from admission to discharge in a patient with myelodysplastic syndrome undergoing myeloablative conditioning and hematopoietic stem cell transplantation: A case report. 国際誌

    Makoto Kawanishi, Yukihide Nishimura, Tokio Kinoshita, Takamasa Hashizaki, Yasunori Umemoto, Kazunari Nishiyama, Fumihiro Tajima

    Medicine   102 ( 24 )   e34001   2023年6月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    BACKGROUND: In myelodysplastic syndromes (MDS), in addition to disease-related symptoms, many adverse events are associated with anticancer agents, myeloablative conditioning (MAC), and allogeneic hematopoietic stem cell transplantation (allo-HSCT). Isolation and bed rest in a clean room severely limit physical activity, resulting in cardiopulmonary and muscle weakness. In addition, post-transplant patients may experience general fatigue, gastrointestinal symptoms, and infections associated with a weakened immune system, as well as graft-versus-host disease, which causes further decline in physical function and activities of daily living (ADL). Most reports on the rehabilitation of patients with hematopoietic tumors involve interventions before and after chemotherapy or transplantation. However, an important issue is to establish effective and feasible exercise programs in a clean room setting, where activity is severely limited and physical function is most likely to decline. CASE REPORT: This case report describes the treatment progress of a 60-year-old man with MDS and thrombocytopenia scheduled to receive MAC and allo-HSCT, who continued bicycle ergometer and step exercises from admission to discharge. The patient was admitted for allo-HSCT, and on day 4, he started bicycle ergometer and step exercise in a clean room and continued until discharge. As a result, exercise tolerance and lower-extremity muscle strength were maintained at the time of hospital discharge. Furthermore, the patient was able to continue rehabilitation in a restricted environment without adverse events. CONCLUSIONS: The rehabilitation and treatment course of this case may provide valuable information for patients with MDS and thrombocytopenia.

    DOI: 10.1097/MD.0000000000034001

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  • Feasibility of Seated Stepping and Handshaking as a Cardiopulmonary Exercise Testing: A Pilot Study. 国際誌

    Kyosuke Imashiro, Yasuko Nishioka, Kenzo Teramura, Hiromi Hashimoto, Hiroki Kimura, Naoya Tanabe, Yasuhiro Taniguchi, Koya Nakai, Yasunori Umemoto, Tomoyuki Ito, Fumihiro Tajima, Yasuo Mikami

    Journal of clinical medicine   12 ( 6 )   2023年3月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    Cardiopulmonary function is usually assessed by cardiopulmonary exercise testing (CPX) using a cycle ergometer (CE-CPX) or a treadmill, which is difficult in patients with lower extremity motor dysfunction. A stepping and handshaking (SHS) exercise has been developed that can be performed safely and easily while sitting on a chair. This study compared peak oxygen uptake (peak V.O2) between CE-CPX and SHS-CPX in healthy adults and investigated the safety and validity of SHS-CPX. Twenty young adults (mean age 27.8 ± 4.4 years) were randomly assigned to perform CE-CPX or SHS-CPX, with the other test to follow 1-2 weeks later. The peak V.O2, respiratory exchange ratio (RER), peak heart rate, blood pressure, and test completion time were compared between CE-CPX and SHS-CPX. All subjects completed the examination and met the criteria for peak V.O2. SHS-CPX and CE-CPX showed a strong correlation with peak V.O2 (r = 0.85, p < 0.0001). The peak V.O2 (40.4 ± 11.3 mL/min/kg vs. 28.9 ± 8.0 mL/min/kg), peak heart rate (190.6 ± 8.9 bpm vs. 172.1 ± 12.6 bpm), and test completion time (1052.8 ± 143.7 s vs. 609.1 ± 96.2 s) were significantly lower in the SHS-CPX (p < 0.0001). There were no adverse events. The peak V.O2 with SHS-CPX was equivalent to about 70% of that with CE-CPX despite the exercise being performed in a sitting position, suggesting its suitability as a submaximal exercise test.

    DOI: 10.3390/jcm12062140

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  • Quantification of catecholamine neurotransmitters released from cutaneous vasoconstrictor nerve endings in men with cervical spinal cord injury. 国際誌

    Tomonori Nakata, Manabu Shibasaki, Yukihide Nishimura, Tokio Kinoshita, Takamasa Hashizaki, Yoshi-Ichiro Kamijo, Ken Kouda, Yasunori Umemoto, Fumihiro Tajima

    American journal of physiology. Regulatory, integrative and comparative physiology   324 ( 3 )   R345-R352   2023年3月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    Control of cutaneous circulation is critically important to maintain thermoregulation, especially in individuals with cervical spinal cord injury (CSCI) who have no or less central thermoregulatory drive. However, the peripheral vasoconstrictor mechanism and capability have not been fully investigated after CSCI. Post- and presynaptic sensitivities of the cutaneous vasoconstrictor system were investigated in 8 CSCI and 7 sedentary able-bodied (AB) men using an intradermal microdialysis technique. Eight doses of norepinephrine (NE, 10-8 to 10-1 M) and five doses of tyramine (TY, 10-8, 10-5 to 10-2 M) were administered into the anterior right and left thigh, respectively. Endogenous catecholamines, noradrenaline, and dopamine, collected at the TY site, were determined by high-performance liquid chromatography with electrochemical detection. Regardless of vasoconstrictor agents, cutaneous vascular conductance decreased dose-dependently and responsiveness was similar between the groups (NE: Group P = 0.255, Dose P = 0.014; TY: Group P = 0.468, Dose P < 0.001), whereas the highest dose of each drug induced cutaneous vasodilation. Administration of TY promoted the release of noradrenaline and dopamine in both groups. Notably, the amount of noradrenaline released was similar between the groups (P = 0.819), although the concentration of dopamine was significantly greater in individuals with CSCI than in AB individuals (P = 0.004). These results suggest that both vasoconstrictor responsiveness and neural functions are maintained after CSCI, and dopamine in the skin is likely to induce cutaneous vasodilation.

    DOI: 10.1152/ajpregu.00063.2022

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  • Effect of Three Weeks of High-Intensity, Long-Term Preoperative Rehabilitation for Esophageal Cancer Patients with Stroke Sequelae Who Were Considered Unfit for Surgery Due to Low Activity: A Case Report. 国際誌

    Tokio Kinoshita, Yukihide Nishimura, Rikito Zaiki, Yoshinori Yasuoka, Yasunori Umemoto, Yumi Koike, Makoto Kawanishi, Fumihiro Tajima

    Healthcare (Basel, Switzerland)   11 ( 5 )   2023年2月

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    記述言語:英語  

    Treatment of esophageal cancer is based on tumor-node-metastasis (TNM) classification, and surgical treatment is chosen based on the patient's ability to tolerate surgery. Surgical endurance partly depends on activity status, with performance status (PS) generally used as an indicator. This report describes a 72-year-old man with lower esophageal cancer and an 8-year history of severe left hemiplegia. He had sequelae of cerebral infarction and a TNM classification of T3, N1, and M0, and was judged ineligible for surgery because his PS was grade three; he underwent preoperative rehabilitation with hospitalization for 3 weeks. He had been able to walk with a cane in the past, but once he was diagnosed with esophageal cancer, he began using a wheelchair and was dependent on assistance from his family in his daily life. Rehabilitation consisted of strength training, aerobic exercise, gait training, and activities of daily living (ADL) training for 5 h a day, according to the patient's condition. After 3 weeks of rehabilitation, his ADL ability and PS improved sufficiently for surgical indication. No complications occurred postoperatively, and he was discharged when his ADL ability was higher than that before preoperative rehabilitation. This case provides valuable information for the rehabilitation of patients with inactive esophageal cancer.

    DOI: 10.3390/healthcare11050665

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  • Renal and Endocrine Responses to Arm Exercise in Persons with Cervical Spinal Cord Injury. 国際誌

    Yuki Mukai, Takashi Kawasaki, Yoshi-Ichiro Kamijo, Kazunari Furusawa, Tatsuru Ibusuki, Yuta Sakurai, Yukihide Nishimura, Yasunori Umemoto, Fumihiro Tajima

    Journal of clinical medicine   12 ( 4 )   2023年2月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    The aim of this study was to assess renal functions and endocrine responses to arm exercise in persons with cervical spinal cord injury (CSCI) under euhydrated conditions (free drinking of water), and to determine the physiological effects of exercise on renal function in these subjects. Eleven CSCI individuals (spinal lesions between C6 and C8, American Spinal Injury Association impairment scale A) and nine able-bodied (AB) persons rested for 30 min before performing 30 min arm-crank ergometer exercises at 50% of their maximum oxygen consumption, followed by 60-min of rest/recovery. Urine and blood samples were collected before and immediately after the exercise and recovery period. The CSCI patients showed no increase in plasma adrenaline and plasma renin activity compared with the AB controls, but showed similar changes in plasma aldosterone and the plasma antidiuretic hormone in response to the exercise. Creatinine clearance, osmolal clearance, free water clearance, and the fractional excretion of Na+ did not change during exercise in both groups of subjects, however free water clearance in the CSCI group was higher than in the AB group throughout the study. These findings suggested that activated plasma aldosterone without an increase in adrenaline or renin activity during exercise in CSCI individuals may reflect an adaptation to the disturbance of the sympathetic nervous system to compensate for renal function. As a result, no adverse effects of exercise on renal function in CSCI patients were observed.

    DOI: 10.3390/jcm12041670

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  • Comparative Study of Muscle Hardness during Water-Walking and Land-Walking Using Ultrasound Real-Time Tissue Elastography in Healthy Young People. 国際誌

    Naoya Tanabe, Yasuko Nishioka, Kyosuke Imashiro, Hiromi Hashimoto, Hiroki Kimura, Yasuhiro Taniguchi, Koya Nakai, Yasunori Umemoto, Ken Kouda, Fumihiro Tajima, Yasuo Mikami

    Journal of clinical medicine   12 ( 4 )   2023年2月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    Compared with land-walking, water-walking is considered to be beneficial as a whole-body exercise because of the characteristics of water (buoyancy, viscosity, hydrostatic pressure, and water temperature). However, there are few reports on the effects of exercise in water on muscles, and there is no standard qualitative assessment method for muscle flexibility. Therefore, we used ultrasound real-time tissue elastography (RTE) to compare muscle hardness after water-walking and land-walking. Participants were 15 healthy young adult males (24.8 ± 2.3 years). The method consisted of land-walking and water-walking for 20 min on separate days. The strain ratio of the rectus femoris (RF) and medial head of gastrocnemius (MHGM) muscles were measured before and immediately after walking using RTE to evaluate muscle hardness. In water-walking, the strain ratio significantly decreased immediately after water-walking, with p < 0.01 for RF and p < 0.05 for MHGM, indicating a significant decrease in muscle hardness after water-walking. On the other hand, land-walking did not produce significant differences in RF and MHGM. Muscle hardness after aerobic exercise, as assessed by RTE, was not changed by land walking but was significantly decreased by water walking. The decrease in muscle hardness induced by water-walking was thought to be caused by the edema reduction effect produced by buoyancy and hydrostatic pressure.

    DOI: 10.3390/jcm12041660

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  • Effectiveness of a 3-Week Rehabilitation Program Combining Muscle Strengthening and Endurance Exercises Prior to Total Knee Arthroplasty: A Non-Randomized Controlled Trial. 国際誌

    Takamasa Hashizaki, Yukihide Nishimura, Takahiro Ogawa, Chigusa Ohno, Ken Kouda, Yasunori Umemoto, Takaya Taniguchi, Hiroshi Yamada, Fumihiro Tajima

    Journal of clinical medicine   12 ( 4 )   2023年2月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    We evaluated the effectiveness of a high-intensity preoperative resistance and endurance training program in improving physical function among patients scheduled for total knee arthroplasty. This non-randomized controlled trial included 33 knee osteoarthritis patients scheduled to undergo total knee arthroplasty at a tertiary public medical university hospital. Fourteen and nineteen patients were non-randomly assigned to intervention and control groups, respectively. All patients underwent total knee arthroplasty and a postoperative rehabilitation program. The intervention group participated in a preoperative rehabilitation program comprising high-intensity resistance and endurance training exercises to increase lower limb muscle strength and endurance capacity. The control group received only exercise instruction. The primary outcome was the 6-min walking distance, which was significantly higher in the intervention group (399 ± 59.8 m) than in the control group (348 ± 75.1 m) 3 months post-surgery. There were no significant differences between the groups 3 months post-surgery in muscle strength, visual analog scale, WOMAC-Pain, range of motion of knee flexion, and extension. A 3-week preoperative rehabilitation program combining muscle strengthening and endurance training improved endurance 3 months after total knee arthroplasty. Thus, preoperative rehabilitation is important for improving postoperative activity.

    DOI: 10.3390/jcm12041523

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  • Voluntary running-induced activation of ventral hippocampal GABAergic interneurons contributes to exercise-induced hypoalgesia in neuropathic pain model mice. 国際誌

    Kohei Minami, Katsuya Kami, Yukihide Nishimura, Makoto Kawanishi, Kyosuke Imashiro, Takuma Kami, Shogo Habata, Emiko Senba, Yasunori Umemoto, Fumihiro Tajima

    Scientific reports   13 ( 1 )   2645 - 2645   2023年2月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    The exact mechanism of exercise-induced hypoalgesia (EIH) in exercise therapy to improve chronic pain has not been fully clarified. Recent studies have suggested the importance of the ventral hippocampus (vHPC) in inducing chronic pain. We investigated the effects of voluntary running (VR) on FosB+ cells and GABAergic interneurons (parvalbumin-positive [PV+] and somatostatin-positive [SOM+]) in the vHPC-CA1 in neuropathic pain (NPP) model mice. VR significantly improved thermal hyperalgesia in the NPP model. The number of the FosB+ cells was significantly higher in partial sciatic nerve ligation-sedentary mice than in Sham and Naive mice, whereas VR significantly suppressed the FosB+ cells in the vHPC-CA1. Furthermore, VR significantly increased the proportion of activated PV+ and SOM+ interneurons in the vHPC-CA1, and tracer experiments indicated that approximately 24% of neurons projecting from the vHPC-CA1 to the basolateral nucleus of amygdala were activated in NPP mice. These results indicate that feedforward suppression of the activated neurons via VR-induced activation of GABAergic interneurons in the vHPC-CA1 may be a mechanism to produce EIH effects, and suggested that disappearance of negative emotions such as fear and anxiety by VR may play a critical role in improving chronic pain.

    DOI: 10.1038/s41598-023-29849-6

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  • Serum concentrations of ketones increase after hand-ergometer exercise in persons with cervical spinal cord injuries: a preliminary prospective study. 国際誌

    Kazunari Nishiyama, Yukihide Nishimuara, Jason S Au, Yoshi-Ichiro Kamijo, Takashi Moriki, Yuki Mukai, Yasunori Umemoto, Ken Kouda, Takahiro Ogawa, Fumihiro Tajima

    Spinal cord   61 ( 2 )   139 - 144   2023年2月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    STUDY DESIGN: Experimental study. OBJECTIVES: To compare lipid profiles during moderate-intensity exercise between persons with cervical spinal cord injuries (SCIC) and able-bodied controls (AB). SETTING: Wakayama Medical University, Japan. METHODS: Six participants with SCIC and six AB performed 30-min arm-crank exercise at 50% VO2peak. Blood samples were collected before (PRE), immediately (POST), and 60 min after exercise (REC). Concentrations of serum free fatty acids ([FFA]s), total ketone bodies ([tKB]s), acetoacetic acid ([AcAc]s), insulin ([Ins]s), and plasma catecholamines and glucose ([Glc]p) were assessed. RESULTS: Catecholamine concentrations in SCIC were lower than AB throughout the experiment (P < 0.001) and remained unchanged, while increased at POST in AB (P < 0.01). [FFA]s remained unchanged in both groups with no differences between groups. [tKB]s in SCIC tended to increase at REC from PRE (P = 0.043), while remaining unchanged in AB (P > 0.42). [AcAc]s in SCIC increased at REC from PRE and POST (P < 0.01) while remaining unchanged in AB (interactions of Group × Time P = 0.014). [Glc]p and [Ins]s were comparable between the groups throughout the study. CONCLUSION: Serum ketone bodies in SCIC increased after exercise while remaining unchanged in AB, suggesting that suppressed uptakes of serum ketone bodies from blood to the muscles in SCIC would partially contribute the increased serum ketones.

    DOI: 10.1038/s41393-022-00859-x

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  • Case report: Physical findings, physical therapy practice, and characteristics of disability of activities of daily living caused by obturator nerve palsy after neurotmesis. 国際誌

    Daichi Shima, Tokio Kinoshita, Yasunori Umemoto, Yoshinori Yasuoka, Takamasa Hashizaki, Makoto Asaeda, Yukihide Nishimura, Tamaki Yahata, Takashi Shimoe, Fumihiro Tajima

    Frontiers in neurology   14   1062018 - 1062018   2023年

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    記述言語:英語  

    The obturator nerve originates from the lumbar plexus and innervates sensation in the thigh and movement of the adductor muscle group of the hip. Reports on physical therapy for patients with obturator nerve injuries have been limited due to insufficient injuries, and there have been no reports on rehabilitation after neurotmesis. Furthermore, there are no reports on the status of activities of daily living (ADL) and details of physical therapy in patients with paralysis of the adductor muscle group. In this study, we reported on a patient with adductor paralysis due to obturator neurotmesis, including the clinical symptoms, characteristics of ADL impairment, and effective movement instruction. The patient is a woman in her 40's who underwent laparoscopic total hysterectomy, bilateral adnexectomy, and pelvic lymph node dissection for uterine cancer (grade-2 endometrial carcinoma). During pelvic lymph node dissection, she developed an obturator nerve injury. She underwent nerve grafting during the same surgery by the microsurgeon. Donor nerve was the ipsilateral sural nerve with a 3-cm graft length. Due to obturator nerve palsy, postoperative manual muscle test results were as follows: adductor magnus muscle, 1; pectineus muscle, 1; adductor longs muscle, 0; adductor brevis muscle, 0; and gracilis muscle, 0. On postoperative day 6, the patient could independently perform ADL; however, she was at risk of falling toward the affected side when putting on and taking off her shoes while standing on the affected leg. The patient was discharged on postoperative day 8. Through this case, we clarified the ADL impairment of a patient with adductor muscle palsy following obturator neurotmesis, and motion instruction was effective as physical therapy for this disability. This case suggests that movement instruction is important for acute rehabilitation therapy for patients with hip adductor muscle group with obturator neurotmesis.

    DOI: 10.3389/fneur.2023.1062018

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  • Case report: Rehabilitation course in thrombocytopenia, anasarca, fever, reticulin fibrosis/renal failure, and organomegaly syndrome complicated by cerebral infarction in the left parabolic coronary region. 国際誌

    Takamasa Hashizaki, Yukihide Nishimura, Tokio Kinoshita, Kohei Minami, Makoto Kawanishi, Yasunori Umemoto, Fumihiro Tajima

    Frontiers in neurology   14   1153941 - 1153941   2023年

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    記述言語:英語  

    Although thrombocytopenia, anasarca, fever, reticulin fibrosis/renal failure, and organomegaly (TAFRO) syndrome was first reported in 2010, its pathogenesis and prognosis are still unknown. Moreover, reports on rehabilitation in patients with TAFRO are limited. In severe cases, dyspnea and muscle weakness could impede improvements in activities of daily living (ADL). However, reports on exercise intensity showed no worsening of TAFRO within the load of 11-13 on the Borg scale. Herein, we describe the rehabilitation and progress in a 61-year-old woman with TAFRO syndrome complicated by cerebral infarction from early onset to discharge. After cerebral infarction onset in the perforating artery, she was admitted to the intensive care unit due to decreased blood pressure and underwent continuous hemodiafiltration. Two weeks following transfer to a general ward, the patient started gait training using a brace due to low blood pressure, respiration, and tachycardia. After initiating gait training, increasing the amount of training was difficult due to a high Borg scale of 15-19, elevated respiratory rate, and worsening tachycardia. Furthermore, there was little improvement in muscle strength on the healthy side after continuous training, owing to long-term steroid administration. On day 100 after transfer, the patient was discharged home with a T-cane gait at a monitored level. The patient had severe hemiplegia due to complications with severe TAFRO syndrome delaying early bed release and gait training; tachycardia; and respiratory distress. Additionally, delayed recovery from muscle weakness on the non-paralyzed side made it difficult for the patient to walk and perform ADLs. Despite these issues, low-frequency rehabilitation was useful. However, low-frequency rehabilitation with gait training, using a Borg scale 15-19 orthosis, did not adversely affect the course of TAFRO syndrome.

    DOI: 10.3389/fneur.2023.1153941

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  • Total Hemoglobin Mass Correlates with Peak Oxygen Consumption in Patients with Chronic Stroke. 国際誌

    Shohei Araki, Yoshi-Ichiro Kamijo, Chika Sato, Yuta Sakurai, Kota Murai, Izumi Yoshioka, Takahiro Ogawa, Yasunori Umemoto, Yukihide Nishimura, Fumihiro Tajima

    Cerebrovascular diseases (Basel, Switzerland)   52 ( 1 )   75 - 80   2023年

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    BACKGROUND: The peak oxygen consumption (V.O2peak) and blood hemoglobin concentration [Hb] are lower in stroke patients than in age-matched healthy subjects. The ability of skeletal muscles to extract oxygen is diminished after stroke. We hypothesized that the oxygen extraction capacity of skeletal muscles in stroke patients depends on [Hb]. To test the hypothesis, we determined the relationship between V.O2peak and total hemoglobin mass (tHb-mass) in stroke patients. METHODS: The subjects were 19 stroke patients (age: 74 ± 2, mean ± SD, 10 males) and 11 age-matched normal subjects (age 76 ± 3, 6 males). Plasma volume (PV) and V.O2peak were measured on the same day. PV was measured using Evans Blue dye dilution method. Blood volume (BV) was calculated from PV and hematocrit, while tHb-mass was estimated from BV and [Hb]. Each subject underwent cardiopulmonary exercise test on a bicycle ergometer using a V.O2peak respiratory gas analyzer. RESULTS: There were no differences in age, height, and weight between the two groups. V.O2peak was lower in stroke patients than in the control. BV and tHb mass were not significantly different between the two groups, but [Hb] was significantly lower in stroke patients. In stroke patients, V.O2peak correlated significantly with tHb-mass (r = 0.497, p < 0.05), but not with BV. CONCLUSION: Our results suggested that low [Hb] seems to contribute to V.O2peak in stroke patients. The significant correlation between tHb-mass and V.O2peak suggested that treatment to improve [Hb] can potentially improve V.O2peak in stroke patients.

    DOI: 10.1159/000525597

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  • Effects of Physiatrist and Physiotherapist-supervised Therapeutic Exercise on Physical Function in Frail Older Patients with Multimorbidity.

    Koki Shiozaki, Makoto Asaeda, Tadaaki Hashimoto, Yasunori Umemoto, Hideyuki Ito, Tomoya Takahashi, Yukihide Nishimura, Fumihiro Tajima

    Progress in rehabilitation medicine   8   20230012 - 20230012   2023年

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    OBJECTIVES: : To ease the burden on care facilities, there is a need to reduce the number of frail older people with multiple chronic and non-communicable diseases (multimorbidity) that require long-term care. We investigated the effects of therapeutic exercise in rehabilitation treatment for older individuals with frailty and multimorbidity. METHODS: : We performed 4 weeks of inpatient rehabilitation treatment for frail older patients with multimorbidity. The therapeutic exercise was performed based on whole-body evaluations by qualified physiatrists and physiotherapists. Sixty-minute sessions were conducted twice a day and six times a week in accordance with the American College of Sports Medicine guidelines. Physical functions (grip strength, isometric lower muscle strength, 10-m walking test, and 6-min walking test) were measured at admission and discharge. RESULTS: : Of the 33 patients, 8 were unable to complete physical function evaluations, and 1 patient had a stress fracture of the right calcaneus beyond the rehabilitation time. Twenty-four patients were included in the analysis. Compared to the admission period, significant improvements were observed for all evaluated parameters post-therapy (P < 0.05). However, no significant correlation was found between the number of chronic diseases and changes to physical function (P > 0.05). CONCLUSIONS: : Physical function of frail older individuals with multimorbidity improves through rehabilitation treatments supervised by physiatrists and physiotherapists. The number of chronic illnesses and the improvements in physical function were not related. Therefore, rehabilitation treatments for older patients may target both frailty and multimorbidity. Our results will aid in the rehabilitation treatment plans for this demographic.

    DOI: 10.2490/prm.20230012

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  • Effects of Combination of Functional Electric Stimulation and Robotic Leg Movement Using Dynamic Tilt Table on Walking Characteristics in Post-Stroke Patients with Spastic Hemiplegia: A Randomized Crossover-Controlled Trial. 国際誌

    Koki Ueda, Yasunori Umemoto, Yoshi-Ichiro Kamijo, Yuta Sakurai, Shohei Araki, Masato Ise, Izumi Yoshioka, Motohiko Banno, Satoshi Mochida, Takaya Iwahashi, Toshio Shimokawa, Yukihide Nishimura, Fumihiro Tajima

    Journal of clinical medicine   11 ( 23 )   2022年11月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    BACKGROUND: Spastic hemiplegia causes slow and unstable walking in post-stroke patients. Dynamic tilt table with robotic leg movement (DTTRLM) is safe and effective in improving walking. Functional electric stimulation (FES) improves walking speed in post-stroke patients with spastic hemiplegia. The aim of this study was to determine the effects of combined DTTRLM + FES on walking speed compared with DTTRLM alone. METHODS: Twenty post-stroke patients were randomly assigned to receive either a single session of stepping + FES treatment or a single session of stepping alone treatment. After a one-week washout period, the same two groups underwent a single session of the other treatment, and the same measurements were taken. We measured walking speed, cadence, and the number of steps in a 10 m walking test (10MWT) and assessed Modified Ashworth Scale (MAS), Fugl-Meyer Assessment (FMA), and range of motion (ROM) before and after the intervention. RESULTS: Stepping + FES significantly improved walking speed, number of steps, and ankle inversion ROM, compared with stepping alone. Adverse events were not observed in any subject. CONCLUSIONS: Robotic stepping therapy combined with FES significantly improved 10 m walking speed (10MWS) compared with stepping only in patients with post-stroke and spastic hemiplegia. Further studies are needed to determine the long-term effects of the combination treatment.

    DOI: 10.3390/jcm11236911

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  • Standing and supine positions are better than sitting in improving rightward deviation in right-hemispheric stroke patients with unilateral spatial neglect: A randomized trial. 国際誌

    Hitoshi Onaka, Ken Kouda, Yukihide Nishimura, Hidenori Tojo, Yasunori Umemoto, Toshikazu Kubo, Fumihiro Tajima, Yukio Mikami

    Medicine   101 ( 46 )   e31571   2022年11月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    TRIAL DESIGN: How body position affects unilateral spatial neglect (USN) is unclear. This cluster randomized trial aimed to examine the effects of different positions (supine, sitting, and standing) on USN in stroke patients. METHODS: Twenty stroke patients (hemorrhage [n = 11], infarction [n = 9]) who were right-handed, had left hemiplegia due to right hemisphere damage that occurred within the last 2 years, and were in a state of arousal with a Glasgow Coma Scale score of 15 were included in the study. Table-top pen-and-pencil tests for USN (Bells Test, Line Bisection, Scene Copy, and Star Cancellation) were randomly conducted in the supine, sitting, and standing positions. RESULTS: The mean values in each test were significantly smaller in the supine position than were those in the sitting position (P = .015, .047, .015, and <.001), and those in the standing position were significantly smaller than those in the sitting position (P = .007, <.001, =.006, and < .001). The results of the 4 tests in the standing position were similar to those in the supine position. CONCLUSIONS: Body position affects USN in stroke patients and that the standing and supine positions improve USN better than the sitting position. Some possible mechanisms are: muscle contractions in the lower limbs and the trunk could have affected results in the standing position, and reduction in gravitational stimulation in the supine position could have played a role.

    DOI: 10.1097/MD.0000000000031571

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  • Exercise-induced increase in M2 macrophages accelerates wound healing in young mice. 国際誌

    Makoto Kawanishi, Katsuya Kami, Yukihide Nishimura, Kohei Minami, Emiko Senba, Yasunori Umemoto, Tokio Kinoshita, Fumihiro Tajima

    Physiological reports   10 ( 19 )   e15447   2022年10月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    Moderate-intensity exercise performed during wound healing has been reported to decrease inflammatory cytokines and chemokines and accelerate wound healing. However, its effect on macrophage phenotype and the mechanism by which exercise accelerates wound healing remain unclear. The purpose of this study was to investigate the effect of exercise on macrophage phenotype during wound healing and to clarify the relationship between angiogenesis and wound healing. 12-week-old male C57BL/6J mice were divided into sedentary (n = 6) and exercise groups (n = 6). The exercise group performed moderate-intensity treadmill running exercise (9.0 m/min, 60 min) for 10 days. Double immunofluorescence analysis was performed using F4/80+ inducible nitric oxide synthase (iNOS)+ for M1 macrophages, F4/80+ transforming growth factor-beta (TGF-β)1+ for M2 macrophages, and CD31+ alpha smooth muscle actin (α-SMA)+ for angiogenesis. The exercise group showed significantly accelerated wound healing compared with the sedentary group. From early wound healing onward, exercise significantly inhibited M1 macrophage infiltration and increased M2 macrophage count. Exercise also significantly increased angiogenesis. Furthermore, the M2 macrophage phenotype was significantly correlated with angiogenesis in the exercise group, indicating that M2 macrophages and angiogenesis are related to accelerated wound healing. These findings suggest that moderate-intensity exercise increases TGF-β1 derived from M2 macrophages, which may be associated with enhanced angiogenesis and wound healing in young mice.

    DOI: 10.14814/phy2.15447

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  • Fourteen-year change in activities of daily living of a quadriplegic, ventilator-managed patient injured by high cervical spinal cord injury during infancy: a case report. 国際誌

    Yoshinori Yasuoka, Yukihide Nishimura, Tokio Kinoshita, Yumi Koike, Yasunori Umemoto, Fumihiro Tajima

    BMC pediatrics   22 ( 1 )   507 - 507   2022年8月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    BACKGROUND: Rehabilitation of patients with high cervical spinal cord injury (CSCI) to improve activities of daily living (ADL) is challenging due to severe paralysis. In addition, pediatric patients with CSCI are rare, and literature describing ADL changes as the patient grows are limited. In this case report, we present the long-term change in ADL over time in a girl with severe high CSCI from an injury during infancy. CASE PRESENTATION: A 2 years and 6 months old girl, who was injured in a traffic accident, was diagnosed with C3 CSCI, resulting in complete quadriplegia and respiratory paralysis below C3. Thus, she was managed with a ventilator. Rehabilitation for quadriplegia, respiratory dysfunction, and autonomic neuropathy was started on the fifth day after the injury while she was in the intensive care unit. Six months after the injury, the patient was transferred to a hospital. Thereafter, she was discharged with nursing and care guidance provided to her family and environmental changes at home. Afterwards, she continued to acquire skills through writing training using a mouse stick, computer operation training, and electric wheelchair operation training, which enabled her to improve her ADL despite her severe disability. In terms of education, she was able to go through a regular elementary school, a regular junior high school, and then to a senior high school of a support school. CONCLUSIONS: We believe that training that utilizes current technology and changes in the environment that are appropriate for daily life are important for improving the ADL of children with severe CSCI.

    DOI: 10.1186/s12887-022-03573-y

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  • Investigation of Adverse Events Occurring during Rehabilitation in Acute Care Hospital. 国際誌

    Tokio Kinoshita, Yukihide Nishimura, Yasunori Umemoto, Shinji Kawasaki, Shinnosuke Hori, Yoshinori Yasuoka, Motohiko Banno, Fumihiro Tajima

    Journal of clinical medicine   11 ( 16 )   2022年8月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    Adverse events (AEs) during intensive care unit (ICU) rehabilitation and serious AEs during acute care hospital stays have been reported previously. However, no AEs have been reported for all patients needing rehabilitation in a non-ICU setting at an acute care hospital. This study aimed to investigate all AEs during acute-phase rehabilitation. Reports of AEs occurring during acute-phase rehabilitation in a university hospital from 1 April 2021 to 31 March 2022 were retrospectively analyzed. Minor and severe AEs were defined as those that did not require new treatment and those that required intensive treatment and/or prolonged hospitalization, respectively. There were 113 incidences of AEs during rehabilitation. The majority of AEs were minor (93.8%) and did not require new treatment. Only one serious AE was documented. The most common AEs were peripheral intravenous tube removal, decreased level of consciousness, poor mood due to low blood pressure, and falling down. There was no significant correlation between years of experience and the frequency of AEs. The neurosurgery department had the highest cases of AEs. Physical, occupational, and speech-language-hearing therapists had different characteristics and experiences of AEs. Risk management strategies should consider exercise load and targeted disorders due to differences in therapists' specialties.

    DOI: 10.3390/jcm11164706

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  • Evaluation of severe adverse events during rehabilitation for acute-phase patients: A retrospective cohort study. 国際誌

    Tokio Kinoshita, Yoshi-Ichiro Kamijo, Ken Kouda, Yoshinori Yasuoka, Yukihide Nishimura, Yasunori Umemoto, Takahiro Ogawa, Yukio Mikami, Makoto Kawanishi, Fumihiro Tajima

    Medicine   101 ( 25 )   e29516   2022年6月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    Early mobilization decreases the likelihood of negative outcomes for acute-phase inpatients. Adverse events occurring during intensive care unit rehabilitation have previously been reported; however, no study has reported the incidence rates for adverse events during the acute rehabilitation phase. This study aimed to investigate the incidence of severe adverse events during acute-phase rehabilitation and evaluate them in detail.Reports of adverse events occurring during acute-phase rehabilitation in a university hospital from April 1, 2011 to March 31, 2018 were retrospectively assessed.Nine severe adverse events occurred during this period (incidence rate, 0.032%), comprising 2 cardiopulmonary arrests, 2 pulseless electrical activity events, 2 deterioration in consciousness events, 1 deterioration in consciousness event due to cerebral infarction, 1 fracture due to a fall, and 1 event involving removal of a ventricular drain. Pulmonary thromboembolism was implicated in 1 adverse event involving pulseless electrical activity and 1 deterioration in consciousness event. The causes for the 6 other adverse events could not be identified. The mean days from admission and the onset of rehabilitation to adverse event occurrence were 22.0 ± 18.2 and 17.9 ± 13.5 days (mean ± standard deviation), respectively. Four of 9 patients died, and 5 patients were discharged home or transferred to other stepdown facilities. When assessed retrospectively, there were no conflicts between patient conditions and the cancellation criteria of rehabilitation by the Japanese Association of Rehabilitation Medicine.The occurrences of severe adverse event may not be related to early mobilization (or onset time of rehabilitation) and compliance status of cancellation criteria.

    DOI: 10.1097/MD.0000000000029516

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  • Increased serum levels of brain-derived neurotrophic factor following wheelchair half marathon race in individuals with spinal cord injury. 国際誌

    Yukihide Nishimura, Takeshi Nakamura, Yoshi-Ichiro Kamijo, Hideki Arakawa, Yasunori Umemoto, Tokio Kinoshita, Yuta Sakurai, Fumihiro Tajima

    The journal of spinal cord medicine   45 ( 3 )   455 - 460   2022年5月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    Objective: Brain-derived neurotrophic factor (BDNF) has beneficial effects on metabolism as well as the peripheral and central nervous systems. The aim of this study was to assess the response of serum BDNF concentration ([BDNF]s) to wheelchair half marathon race in individuals with spinal cord injury (SCI).Design: Prospective observational study.Setting: The 34th Oita International Wheelchair Marathon Race in Japan.Participants: Nine cervical SCIs (CSCI) and 8 thoracic and lumber SCIs (LSCI) male athletes. Interventions: Wheelchair half-Marathon Race.Outcome measures: [BDNF]s, plasma concentrations of adrenaline ([Ad]p), noradrenaline ([Nor]p), and cortisol ([Cor]p), hematocrit, and platelet count were measured the day before, immediately after, and an hour after the race.Results: [BDNF]s increased significantly immediately after the race in both groups (CSCI; P = 0.0055, LSCI; P = 0.0312) but returned to the baseline levels at one hour after the race. However, [BDNF]s immediately and one hour after the race were significantly higher in LSCI than in CSCI (immediately after the race; P = 0.0037, 1 h after the race; P = 0.0206). Hematocrit and platelet count remained unchanged throughout the study. In LSCI, [Ad]p, [Nor]p and [Cor]p increased significantly immediately after and one hour after the race, compared with the baseline values (P < 0.05). On the other hand, these variables remained unchanged throughout the study in the CSCI.Conclusions: [BDNF]s increased significantly from the baseline in both LCSI and CSCI but was higher in LSCI than in CSCI immediately after and one hour after the race.

    DOI: 10.1080/10790268.2020.1816402

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  • Dose-response Rehabilitation Organized By Pror In Out-patients With Chronic Cerebrovascular Disorder: A single-center retrospective cohort study. 国際誌

    Rikito Zaiki, Yoshi-Ichiro Kamijo, Takashi Moriki, Yasunori Umemoto, Yuki Mukai, Yukio Mikami, Ken Kouda, Takahiro Ogawa, Yukihide Nishimura, Fumihiro Tajima

    Journal of stroke and cerebrovascular diseases : the official journal of National Stroke Association   31 ( 5 )   106375 - 106375   2022年5月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    PURPOSE: We aimed to investigate whether out-patient rehabilitation with the same concept as physiatrist and registered therapist operating rehabilitation (PROr) would improve activities of daily living in out-patients with chronic cerebrovascular disorder and whether the improvements were related to the frequency and/or time of therapy. METHODS: Out-patients with chronic cerebrovascular disorder, who visited a clinic affiliated with a university hospital for at least a month between April 2010-September 2020, were retrospectively selected. Changes in the functional independence measure (FIM) from the first visit to the 12th month were calculated. Patients were stratified into two subgroups: improved and non-improved groups. The frequency and time of physical and occupational therapies and total rehabilitation were compared between the groups. RESULTS: Initially, 174 patients were selected and 125 were excluded based on the exclusion criteria. Three patients terminated rehabilitation because of improvements. In 18 of 49 patients, FIM improved at the 12th month by 4.9 [3.1-6.8] (mean [95% CI]). The frequency was ∼2 times/week with no differences between the groups. Physical therapy time/day was higher in the improved group (74.7 [66.7-82.7] min) than the non-improved group (50.7 [44.3-57.0] min; P<0. 001). The total rehabilitation time/day was 121.9 [107.8-136.0] min in the improved group, which was higher than the non-improved group: 97.9 [87.7-107.9] (P=0.001). CONCLUSIONS: Approximately 40% of the patients displayed improved FIM even during the chronic phase, and the improved out-patients took PROr for at least 108 min/day and twice a week. A longer rehabilitation time would be reinforced by patients' motivation.

    DOI: 10.1016/j.jstrokecerebrovasdis.2022.106375

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  • The Effects of Early Rehabilitation in the Intensive Care Unit for Patients with Severe COVID-19 Pneumonia: A Retrospective Cohort Study. 国際誌

    Tokio Kinoshita, Yukihide Nishimura, Yasunori Umemoto, Yasuhisa Fujita, Ken Kouda, Yoshinori Yasuoka, Kyohei Miyamoto, Seiya Kato, Fumihiro Tajima

    Journal of clinical medicine   11 ( 2 )   2022年1月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    This retrospective cohort study aimed to examine the rehabilitation effect of patients with coronavirus disease 2019 (COVID-19) in the intensive care unit (ICU) under mechanical ventilation and included ICU patients from a university hospital who received rehabilitation under ventilator control until 31 May 2021. Seven patients were included, and three of them died; thus, the results of the four survivors were examined. The rehabilitation program comprised the extremity range-of-motion training and sitting on the bed's edge. The Sequential Organ Failure Assessment score (median (25-75th percentiles)) at admission was 7.5 (5.75-8.5), and the activities of daily living (ADLs) were bedridden, the lowest in the Functional Independence Measure (FIM) and Barthel Index (BI) surveys. Data on the mean time to extubation, ICU length of stay, and ADLs improvement (FIM and BI) during ICU admission were obtained. Inferential analyses were not performed considering the small sample size. The mean time to extubation was 4.9 ± 1.1 days, and the ICU length of stay was 11.8 ± 5.0 days. ΔFIM was 36.5 (28.0-40.5), and the ΔBI was 22.5 (3.75-40.0). Moreover, no serious adverse events occurred in the patients during rehabilitation. Early mobilization of patients with COVID-19 may be useful in ADLs improvement during ICU stay.

    DOI: 10.3390/jcm11020357

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  • A one touch clamp and rack smart pump reduces mobilisation time and perceived burden of clinical staff members in charge of acute phase rehabilitation. 国際誌

    Yukio Mikami, Yasunori Umemoto, Sven P Hoekstra, Shinnosuke Hori, Takaya Iwahashi, Kenji Mochida, Yoshi-Ichiro Kamijyo, Fumihiro Tajima

    Journal of medical engineering & technology   46 ( 1 )   32 - 39   2022年1月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    The purpose of this study was to experimentally assess the effect of a one touch clamp and rack smart pump on the time needed for patient mobilisation and the clinical staff`s perceived burden associated with these procedures when compared with the traditional type infusion system. Participants were randomly assigned to one of three groups: Multi-layer rack group (MULTI), One-touch pole clamp group (ONE), and a Control group (CON). In CON, traditional type pumps were replaced from pole stands to pole stands. In MULTI, the smart pumps were replaced from multi-layer rack to multi-layer rack, and in ONE the smart pumps were replaced from pole stands to multi-layer rack. In each group, the subject round-transported the simulated patient and re-replaced the pumps. The time of both pump replacements and the transport time were significantly shorter in MULTI and ONE compared with CON (p < 0.0001). The perceived burden of the replacement and transport were all significantly lower in MULTI and ONE than CON (p < 0.0001). The one touch clamp and rack smart pump reduced the time needed and perceived burden of mobilisation. These findings are anticipated to translate into progression in the delivery of early mobilisation and ultimately rehabilitation outcomes.

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  • Characteristics of falls occurring during rehabilitation in an acute care hospital in older and non-older patients: A retrospective cohort study. 国際誌

    Tokio Kinoshita, Yukihide Nishimura, Yasunori Umemoto, Shinji Kawasaki, Yoshinori Yasuoka, Kohei Minami, Yumi Koike, Fumihiro Tajima

    Frontiers in medicine   9   969457 - 969457   2022年

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    INTRODUCTION: Although falls are often reported in hospitals and are common in older individuals, no reports on falls during rehabilitation exist. This study evaluated patients with falls occurring during rehabilitation and identified the characteristics of older and non-older patients. MATERIALS AND METHODS: Our study retrospectively analyzed reports of falls occurring during rehabilitation at a university hospital from April 1, 2020 to March 31, 2022. The survey items included the number of falls in the hospital as a whole and during rehabilitation, age, gender, modified Rankin Scale (mRS) before admission and at the time of fall, functional independence measure (FIM) at admission, patient communication status at the time of fall, and whether a therapist was near the patient. Patients aged ≥ 65 were considered older; aged ≤ 64, non-older; and those with the same age, gender, and clinical department, randomly selected as non-falling patients. RESULTS: Thirty-five falls occurred during rehabilitation (14 in the non-older and 21 in the older patients), significantly lower than the 945 for the entire hospital, without any significant difference between non-older and older patients. No significant differences in mRS before admission and FIM at admission were noted for both groups in comparison with the non-falling patient group. Furthermore, gender, mRS, FIM, good communication status, and presence of therapist near the patient were similar between non-older and older patients (non-older 71.4%, older 52.4%). Most falls were minor adverse events that did not require additional treatment. CONCLUSION: The rate of falls during rehabilitation was much lower than that during hospitalization, and many falls had minimal impact on the patient. It was also difficult to predict falls in daily life and communication situations, and there was no difference in characteristics between the older and non-older groups. Since more than half of the falls occurred during training with the therapist, it is necessary to reconsider the training content.

    DOI: 10.3389/fmed.2022.969457

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  • Follow-Up Study of Subdermal Low-Echoic Lesions in the Ischial Region in Wheelchair Users With Spinal Cord Injuries. 国際誌

    Shinji Kawasaki, Yukihide Nishimura, Ken Kouda, Yasunori Umemoto, Tokio Kinoshita, Takamasa Hashizaki, Makoto Kawanishi, Taro Nakamura, Fumihiro Tajima

    Frontiers in medicine   9   848338 - 848338   2022年

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    OBJECTIVE: To follow up patients with spinal cord injuries with subdermal low-echoic lesions in the ischial region for abnormalities after 1 year. DESIGN: A retrospective cohort study. SETTING: A Japanese rehabilitation center. PARTICIPANTS: We included patients with chronic spinal cord injuries and subdermal low-echoic lesions who underwent routine inspection and palpation examinations (n = 7). INTERVENTIONS: Education on pressure injury and instruction on pressure relief and seating was provided and the patients were followed up for abnormalities after 1 year. Self-reports were obtained on wheelchair sitting time, and interface pressure was recorded while the patients were seated on the wheelchair. Interface pressure measurements at the bilateral ischial regions were recorded with a force-sensitive application pressure mapping system. OUTCOME MEASURES: The primary outcome was the presence of subdermal low-echoic lesions in the bilateral ischial regions on ultrasonography at the 1-year follow-up examination. Secondary outcomes included wheelchair sitting time and interface pressure in the bilateral ischial regions. RESULTS: Of the 10 areas that showed subdermal low-echoic lesions on ultrasonography, nine had improved after 1 year. One area that did not improve was an open wound. At the follow-up examination, the pressure duration was reduced in all patients, and the interface pressure could be reduced in 5/7 patients. CONCLUSIONS: This is the first study to follow up with patients having spinal cord injuries and subdermal low-echoic lesions in the ischial region using ultrasonography. The low-echoic lesions improved within 1 year by reducing the pressure duration and interface pressure. Pressure injury prevention in patients with spinal cord injuries relies on the early detection of skin abnormalities, and education and instruction to change self-management behaviors are recommended.

    DOI: 10.3389/fmed.2022.848338

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  • Surface electromyographic activity of the erector spinae and multifidus during arm- and leg-ergometer exercises in young healthy men. 国際誌

    Daichi Shima, Yukihide Nishimura, Takamasa Hashizaki, Yuta Minoshima, Tatsuya Yoshikawa, Yasunori Umemoto, Tokio Kinoshita, Ken Kouda, Fumihiro Tajima, Yoshi-Ichiro Kamijo

    Frontiers in physiology   13   974632 - 974632   2022年

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    Objectives: Ergometer exercise was considered a new loading method that can be used for participants who are unable to assume the core strengthening exercise posture commonly used to strengthen the erector spinae and multifidus. This study aimed to investigate with healthy participants whether arm and leg ergometers could be used for core strengthening exercises and whether different exercise sites would affect the results. Methods: The study was conducted with 15 healthy adult male participants aged 20-35 years. The intervention consisted of arm- and leg-ergometer exercises performed by the participants. The exercise protocol consisted of three 1-min sessions (rest, 50W, and 100 W), which were measured consecutively. Surface electromyography (sEMG) was measured during the sessions. Maximal voluntary contraction (MVC) of the erector spinae and multifidus was also measured, during which sEMG was measured. The sEMG during ergometer exercise was calculated as a percentage of the MVC (calculated as % MVC). The root mean square (RMS) was recorded from the sEMG activity. Muscle activity of the erector spinae and multifidus was compared between ergometer exercises and between intensity levels. Heart rate (HR) was recorded by electrocardiogram. Results: In the arm-ergometer exercise, the % MVC values of the erector spinae were 6.3 ± 3.1, 10.9 ± 5.4, and 16.9 ± 8.3% at rest, 50 W, and 100 W conditions, respectively. The multifidus was 4.6 ± 2.9, 9.2 ± 5.6, and 12.6 ± 7.6% at rest, 50 W, and 100 W conditions, respectively. The respective % MVC values during the leg-ergometer exercise were 3.8 ± 1.7, 7.2 ± 3.8, and 10.4 ± 4.0% at rest, 50 W, and 100 W conditions, respectively. Leg-ergometer exercises were 2.6 ± 2.1, 6.9 ± 5.7, and 10.3 ± 6.8% at rest, 50 W, and 100 W conditions, respectively. The activities of the two muscles increased at comparable levels with increased workload in both types of exercises (p < 0.01, each). HR increased with the increased workload and the increase was larger during arm-than leg-ergometer exercises. Conclusion: These results demonstrate that both arm- and leg-ergometer exercises are potentially alternative methods for erector spinae and multifidus training for healthy participants. Further research is needed to target elderly.

    DOI: 10.3389/fphys.2022.974632

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  • Feasibility of sit training for patients with severe COVID-19 pneumonia during deep sedation: A case report. 国際誌

    Tokio Kinoshita, Yasunori Umemoto, Yoshinori Yasuoka, Tatsuya Yoshikawa, Ken Kouda, Shinnosuke Hori, Yukio Mikami, Yukihide Nishimura, Kyohei Miyamoto, Seiya Kato, Fumihiro Tajima

    Medicine   100 ( 22 )   e26240   2021年6月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    RATIONALE: There have been a few reports on the early rehabilitation of patients with coronavirus disease (COVID-19), and none on the effectiveness and adverse events of early mobilization for mechanical ventilation patients (other than COVID-19) during deep sedation. This report indicates that sitting without adverse events is possible in patients with severe COVID-19 pneumonia during deep sedation with muscle relaxation. PATIENT CONCERNS: A 65-year-old man with a history of diabetes mellitus, lacunar infarction, and Parkinson's disease was admitted to a local hospital for pneumonia due to COVID-19. After admission, the patient was managed on a ventilator under deep sedation with muscle relaxants and sedatives. Twelve days after admission, the patient was transferred to our hospital due to his worsening respiratory status. DIAGNOSIS: Pneumonia due to COVID-19 was diagnosed using a polymerase chain reaction-dependent method. INTERVENTIONS: The day following transfer, a physical therapist started passive range of motion training and sitting. OUTCOMES: The period spanning his initial rehabilitation to muscle relaxant medication interruption was 9 days, and he underwent 7 rehabilitation sessions. The patient was unable to sit during only one of the 7 sessions due to pre-rehabilitation hypoxemia. In 5 of the 6 sitting sessions, PaO2/FiO2 transiently decreased but recovered by the time of subsequent blood sampling. The patient's PaCO2 decreased during all sessions. His blood pressure did not drastically decrease in any sitting session, except the first. Sputum excretion via sputum suction increased during sitting, and peak inspiratory pressure did not change. LESSONS: The patient eventually died of pneumonia due to COVID-19. However, sitting during deep sedation with muscle relaxants did not cause any serious adverse events nor did it appear to cause obvious negative respiratory effects.

    DOI: 10.1097/MD.0000000000026240

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  • The acute effect of dopamine infusion on lipid and cytokine concentrations in persons with a cervical spinal cord injury-a pilot study. 国際誌

    Sven P Hoekstra, Yoshi-Ichiro Kamijo, Takayoshi Matsushita, Christof A Leicht, Kazunari Nishiyama, Victoria L Goosey-Tolfrey, Yasunori Nagano, Yasunori Umemoto, Masumi Nakahama, Yohei Furotani, Fumihiro Tajima

    Spinal cord   59 ( 3 )   274 - 281   2021年3月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    STUDY DESIGN: Acute experimental study. OBJECTIVES: To investigate the acute response of markers of lipid metabolism and interleukin (IL)-6 to dopamine infusion in people with a cervical spinal cord injury (CSCI). SETTING: Laboratory of Wakayama Medical University, Japan. METHODS: Ten participants, four with CSCI and six AB individuals, underwent 50 min of dopamine infusion. Blood samples were collected prior to, immediately after and 1 h following cessation of dopamine infusion for the determination of circulating catecholamine, lipid, ketone body and IL-6 concentrations. RESULTS: The adrenaline concentration following dopamine infusion was increased by 59 ± 7% in CSCI (p = 0.038, Cohen's d effect size (ES): 1.47), while this was not changed in AB (p = 0.223). Triglycerides and acetoacetic acid concentration were increased in both groups, immediately after and 1 h post-infusion (triglycerides p ≤ 0.042, ES CSCI: 1.00, ES AB: 1.12; acetoacetic acid p ≤ 0.030; ES CSCI: 1.72, ES AB: 1.31). 3-Hydroxybutyric acid concentration was increased in CSCI only (48 ± 15%, p = 0.039, ES: 1.44; AB p = 0.115). Dopamine infusion did not affect plasma IL-6 concentration in either group (p ≥ 0.368). CONCLUSIONS: Dopamine infusion induced a sustained increase in triglyceride and ketone body concentrations in persons with CSCI. In contrast, cytokine concentrations were not affected by dopamine infusion. These findings suggest that circulating catecholamines can stimulate metabolism in people with CSCI despite the presence of autonomic dysfunction.

    DOI: 10.1038/s41393-021-00613-9

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  • Immediate effects of short period lower limb ergometer exercise in adolescent and young adult patients with cerebral palsy and spastic diplegia.

    Junpei Fujimoto, Yasunori Umemoto, Yumi Koike, Kazuya Isida, Keiko Sakamoto, Fumihiro Tajima

    Journal of physical therapy science   33 ( 1 )   52 - 56   2021年1月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    [Purpose] To determine the effects of lower limb ergometer exercise on the spasticity and joint range of motion of the lower extremity and gait function in patients with cerebral palsy and spastic paralysis. [Participants and Methods] This study included 8 participants with cerebral palsy and spastic paralysis (GMFCS levels I to IV) who received care at the outpatient clinic. After a 5-min rest, the lower limb ergometer exercises were performed for 10 min. We measured the participants' arterial blood pressure, pulse rate, passive range of knee joint extension, muscle tone using the Modified Ashworth scale (MAS) and Modified Tardieu scale (MTS), and 10-m walk test (10MWT). Measurements were collected three times (at baseline before exercise, immediately at the end of exercise, and 5 min after exercise during recovery). [Results] The 10-min lower limb ergometer exercise significantly improved the knee joint extension, MAS and MTS scores, and reduced lower extremity spasticity. Furthermore, it significantly increased the range of knee joint extension and decreased the 10MWT score. [Conclusion] The results showed that the 10-minute lower limb ergometer exercise is beneficial in reducing the spasticity of the lower limb muscles and in increasing the range of motion of knee extension in paraplegic patients with cerebral palsy, suggesting that its implementation in young children could prevent spasticity and enhance motor function.

    DOI: 10.1589/jpts.33.52

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  • An Urgent Webinar for Therapists Working in Local Facilities by Physiatrists and Therapists in a Regional Core Hospital during the COVID-19 Pandemic.

    Tokio Kinoshita, Tatsuya Yoshikawa, Yukio Mikami, Shinnosuke Hori, Yumi Koike, Yoshio Yamamoto, Yoshi-Ichiro Kamijo, Yasunori Umemoto, Ken Kouda, Hiroyasu Uenishi, Fumihiro Tajima

    Progress in rehabilitation medicine   6   20210007 - 20210007   2021年

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    BACKGROUND: After the emergence of novel coronavirus disease (COVID-19), cluster infections occurred at several rehabilitation facilities in Japan. Because rehabilitation is necessary for deconditioned COVID-19 patients, preventing cluster infections and providing rehabilitation while protecting therapists were also essential in the Wakayama region. WEBINAR: The rehabilitation medicine department and division of Wakayama Medical University Hospital, which consists of physiatrists and registered therapists, proposed that the Wakayama Physical Therapy Association hold an urgent webinar for therapists in the Wakayama region. The webinar (120 min in duration) comprised an overview of severe acute respiratory syndrome coronavirus 2, the significance of rehabilitation therapy for COVID-19 patients, instruction in personal protective equipment, and case reports on COVID-19 patients from an affiliated university hospital. The webinar was held on May 16, 2020, after only 9 days of preparation. Ninety-six members of 29 facilities in the Wakayama region participated, including therapists who lived far from the university. Moreover, the webinar was implemented at a lower cost than a conventional meeting. An opportunity was provided to share information among participants, speakers, instructors, and a supervisor after the presentations. The overall level of satisfaction of participants after the webinar was high. DETAILS: The rehabilitation medicine department and division of Wakayama Medical University Hospital, which consists of physiatrists and registered therapists, proposed that the Wakayama Physical Therapy Association hold an urgent webinar for therapists in the Wakayama region. The webinar (120 min in duration) comprised an overview of severe acute respiratory syndrome coronavirus 2, the significance of rehabilitation therapy for COVID-19 patients, instruction in personal protective equipment, and case reports on COVID-19 patients from an affiliated university hospital. The webinar was held on May 16, 2020, after only 9 days of preparation. Ninety-six members of 29 facilities in the Wakayama region participated, including therapists who lived far from the university. Moreover, the webinar was implemented at a lower cost than a conventional meeting. An opportunity was provided to share information among participants, speakers, instructors, and a supervisor after the presentations. The overall level of satisfaction of participants after the webinar was high. CONCLUSION: This webinar for therapists in local facilities was held by physiatrists and therapists at Wakayama Medical University, a regional core hospital, in collaboration with the regional therapy association. The preparation time was only 9 days and the cost was lower than that for a conventional meeting, thereby allowing participants to share information about infection control for COVID-19 in an efficient and cost-effective manner.

    DOI: 10.2490/prm.20210007

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  • Case Report: Rehabilitation for Lower Extremity Pain Due to Venous Stasis in a Patient With Multisystem Inflammatory Syndrome in Children. 国際誌

    Tokio Kinoshita, Yukihide Nishimura, Yasunori Umemoto, Yumi Koike, Ken Kouda, Takahiro Ogawa, Tomohiro Suenaga, Fumihiro Tajima

    Frontiers in pediatrics   9   810811 - 810811   2021年

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    記述言語:英語  

    Recently, it was reported that children recovering from coronavirus disease (COVID-19) developed multisystem inflammatory syndrome in children (MIS-C), which causes severe inflammation in multiple organs of the body. Because MIS-C is a new disease, the pathophysiology and prognosis are unknown. Owing to a lack of studies on this subject, we herein provide information on rehabilitation for children with MIS-C. A 12-year-old male patient presented with systemic inflammatory symptoms after approximately 2 months since recovery from COVID-19. He was treated with cyclosporine and steroid pulse therapy after admission to our hospital. His general condition improved significantly within approximately 1 week. Thereafter, his lower legs turned dark purple and he experienced intense pain whenever the lower limbs hung below the heart, such as in the sitting position. The patient was referred to the rehabilitation department, as he had difficulties during standing and walking. Because the symptoms improved with elevation of the lower extremities, we considered that the pain was related to venous stasis. The pain reduced when an elastic bandage was applied for the prevention of venous stasis; therefore, exercise therapy was implemented while the patient wore the elastic bandage. The patient's lower extremity symptoms improved in 10 days. He was discharged after 16 days and could independently perform activities of daily living (ADL). The mechanism underlying the patient's pain could not be determined; however, rehabilitation was effective when combined with compression therapy using an elastic bandage.

    DOI: 10.3389/fped.2021.810811

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  • The effects of endurance exercise combined with high-temperature head-out water immersion on serum concentration of brain-derived neurotrophic factor in healthy young men. 国際誌

    Hiroshi Ohko, Yasunori Umemoto, Yuta Sakurai, Shouhei Araki, Daisuke Kojima, Yoshiichiro Kamijo, Kota Murai, Yoshinori Yasuoka, Fumihiro Tajima

    International journal of hyperthermia : the official journal of European Society for Hyperthermic Oncology, North American Hyperthermia Group   38 ( 1 )   1077 - 1085   2021年

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    OBJECTIVES: To evaluate acute changes in serum brain-derived neurotrophic factor (BDNF) concentration following combined endurance exercise and heat stress through head-out water immersion (HOI). SETTING: Observational study with crossover design. METHODS: Ten healthy young male participants performed HOI at 40 °C (40 °C HOI) or continuous cycling at 60% of maximal oxygen uptake while immersed in 40 °C (40 °C HOI-ex) or 23 °C water (23 °C HOI-ex) for 15 min. Serum BDNF, cortisol and lactate concentrations, and core temperature (Tcore) were measured pre, immediately post, and 15 and 30 min post-immersion. RESULTS: BDNF concentration increased immediately and 15 min after 40 °C HOI-ex, but not after 40 °C or 23 °C HOI-ex. No changes in Tcore concentration were observed during 23 °C HOI-ex (Pre; 37.3 °C ± 0.3 °C, Post; 37.8 °C ± 0.2 °C, Post 15; 37.4 °C ± 0.3 °C, Post 30; 37.2 °C ± 0.2 °C). Tcore increased significantly post, post 15, and post 30 min of 40 °C HOI (Pre; 37.1 °C ± 0.4 °C, Post; 38.8 °C ± 0.5 °C, Post 15; 37.9 °C ± 0.4 °C, Post 30; 37.9 °C ± 0.2 °C) and 40 °C HOI-ex (Pre; 37.2 °C ± 0.2 °C, Post; 40.2 °C ± 0.7 °C, Post 15; 38.9 °C ± 0.5 °C, Post 30; 38.3 °C ± 0.5 °C). Tcore was higher in 40 °C HOI-ex compared with 40 °C HOI and 23 °C HOI-ex immediately post and post 15 min. Plasma lactate and cortisol were significantly higher in 40 °C HOI-ex compared with 40 °C HOI and 23 °C HOI-ex after immersion (p = 0.001). CONCLUSION: While 15 min HOI alone or thermoneutral exercise do not increase BDNF concentration, both combined may form a time-efficient strategy to acutely elevate BDNF.

    DOI: 10.1080/02656736.2021.1922761

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  • Case Report: A Rehabilitation Practice Report During ICU Management for a Patient With Multiple Disabilities Due to COVID-19 Pneumonia and COPD. 国際誌

    Tokio Kinoshita, Ken Kouda, Yasunori Umemoto, Yoshinori Yasuoka, Yuta Minoshima, Yukio Mikami, Yukihide Nishimura, Kyohei Miyamoto, Seiya Kato, Fumihiro Tajima

    Frontiers in medicine   8   692898 - 692898   2021年

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    記述言語:英語  

    Patients with severe coronavirus disease (COVID-19) and admitted to the intensive care unit (ICU) are at high risk of developing ICU-acquired weakness and disuse syndrome. Although their medical management may include prolonged deep sedation for pulmonary protection and ventilator management, we aim for early mobilization of these patients with COVID-19. We present the case of a 71-year-old man with chronic obstructive pulmonary disease (COPD) and COVID-19 pneumonia. Passive range of motion training and sitting on the edge of the bed were started in the ICU while the patient was under deep sedation. His activities of daily living eventually improved to where he could independently walk to the toilet without respiratory distress. Patients with severe COVID-19 who require mechanical ventilation are at risk of muscle weakness and exercise intolerance. These patients require rehabilitation therapy, beginning in the acute phase of illness, to recover their physical function. Although validation with a larger cohort is necessary, our results suggest that patients with COPD and COVID-19 pneumonia should undergo rehabilitation concurrently with status-driven changes in respiratory management.

    DOI: 10.3389/fmed.2021.692898

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  • Effect of coronary artery bypass grafting on blood pressure response to head-up tilting.

    Shinnosuke Hori, Yoshi-Ichiro Kamijo, Mitsuru Yuzaki, Tetsuya Kawabe, Kohei Minami, Yasunori Umemoto, Mao Yokoyama, Hiroyasu Uenishi, Yoshiharu Nishimura, Ken Kouda, Yukio Mikami, Fumihiro Tajima

    The journal of physiological sciences : JPS   70 ( 1 )   21 - 21   2020年3月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    Blood pressure response to head-up tilt (HUT) in 7 healthy subjects and 9 patients before and after coronary artery bypass grafting (CABG) was measured during supine and 15-min 60° HUT. Stroke volume (SV) and ejection fraction (EF) were assessed by echocardiography. Baseline mean arterial pressure (MAP) and heart rate (HR) in patients before CABG were similar to healthy subjects. MAP in patients decreased by 6 (4-9) mmHg [median (1st-3rd quartiles)] during 7-12 mmHg of HUT with decreased cardiac output (CO = SV × HR) while HR remained unchanged. MAP in healthy subjects remained unchanged during HUT with increased HR. Body weight decreased by 3.5 (2.5-3.7) kg and MAP decreased by 6 (2-13) mmHg during the last 3-min HUT while HR increased after CABG. Decreases in SV and CO during HUT disappeared after CABG. Blood pressure decreased during HUT in patients before and after CABG regardless of HR response.

    DOI: 10.1186/s12576-020-00746-1

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  • Wogonin attenuates the deleterious effects of traumatic brain injury in anesthetized Wistar rats. 国際誌

    Yasunori Umemoto, Anshu Patel, Trong Huynh, Vineet C Chitravanshi

    European journal of pharmacology   848   121 - 130   2019年4月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    Wogonin, a flavonoid (5,7-dihydroxy-8-methoxyflavone) with reported neuroprotective properties, is widely used in treating inflammatory diseases. The main goal of this study was to explore the role of wogonin in preventing deleterious cardiovascular effects of traumatic brain injury (TBI). Experiments were carried out in adult male urethane-anesthetized, artificially ventilated, Wistar rats, weighing 300-350 gm. TBI was produced by fluid percussion injury (FPI). A significant decrease in blood pressure (BP), heart rate (HR) and greater splanchnic nerve activity (GSNA), which lasted for up to 4 h, was observed after the application of moderate FPI. Intravenous (i.v.) and intracerebroventricular (i.c.v.) administration of wogonin before and after the moderate FPI significantly attenuated the decreases in BP, HR, and GSNA elicited by FPI. Administration of wogonin also prevented the attenuation of baroreflex-induced bradycardia elicited by FPI. Based on these results, it was concluded that administration of wogonin attenuates the deleterious effects of moderate FPI.

    DOI: 10.1016/j.ejphar.2019.01.035

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  • Head-out immersion in hot water increases serum BDNF in healthy males. 国際誌

    Daisuke Kojima, Takeshi Nakamura, Motohiko Banno, Yasunori Umemoto, Tokio Kinoshita, Yuko Ishida, Fumihiro Tajima

    International journal of hyperthermia : the official journal of European Society for Hyperthermic Oncology, North American Hyperthermia Group   34 ( 6 )   834 - 839   2018年9月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    PURPOSE: Brain-derived neurotrophic factor (BDNF) is an important neurotrophin. The present study investigated the effects of head-out water immersion (HOI) on serum BDNF concentrations. METHODS: Eight healthy men performed 20 min head-out water immersion at 42 °C (hot-HOI) and 35 °C (neutral-HOI). These experimental trials were administered in a randomised order separated by at least 7 days. Venous blood samples were withdrawn at rest, immediately after the 20-min HOI, as well as at 15 and 30 min after the end of the HOI. Serum BDNF and S100β, plasma cortisol, platelet and monocyte counts, and core body temperature (Tcb) were measured. RESULTS: Tcb was higher at the end of the hot-HOI and 15 min after hot-HOI (p < 0.01), but recovered to pre-HOI level at 30 min after hot-HOI. No change in Tcb was recorded during neutral-HOI. BDNF level was higher (p < 0.05) at the end of the hot-HOI and at 15 min after the end of hot-HOI, and returned to the baseline at 30 min after hot-HOI. S100β, platelet count and monocyte count remained stable throughout the study. Cortisol level was lower at the end of the hot-HOI and returned to pre-HOI level during the recovery period. BDNF and S100β, cortisol, and platelet and monocyte counts did not change throughout the neutral-HOI study. CONCLUSIONS: The present findings suggested that the increase in BDNF during 20-min hot-HOI was induced by hyperthermia through enhanced production, rather than by changes in permeability of the blood-brain barrier (BBB), platelet clotting mechanisms or secretion from monocytes.

    DOI: 10.1080/02656736.2017.1394502

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  • Differences in serum IL-6 response after 1 °C rise in core body temperature in individuals with spinal cord injury and cervical spinal cord injury during local heat stress. 国際誌

    Takamasa Hashizaki, Yukihide Nishimura, Kenzo Teramura, Yasunori Umemoto, Manabu Shibasaki, C A Leicht, Ken Kouda, Fumihiro Tajima

    International journal of hyperthermia : the official journal of European Society for Hyperthermic Oncology, North American Hyperthermia Group   35 ( 1 )   541 - 547   2018年

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    OBJECTIVES: Passive rise in core body temperature achieved by head-out hot water immersion (HHWI) results in acute increases in serum interleukin (IL)-6 but no change in plasma adrenaline in patients with cervical spinal cord injury (CSCI). The purpose of the present study was to determine the mechanism of heat stress-induced increase in serum IL-6. SETTING: A cross-sectional study. METHODS: The study subjects were nine with CSCI, ten with thoracic and lumbar spinal cord injury (TLSCI) and eight able-bodied (AB) subjects. Time since injury was 16.1 ± 3.4 years in TLSCI and 16.4 ± 4.1 years in CSCI. Subjects were subjected to lower-body heat stress (LBH) by wearing a hot water-perfused suit until 1 °C increase in core temperature. The levels of serum IL-6, plasma adrenaline, tumour necrosis factor (TNF)-α, C-reactive protein (CRP), and counts of blood cells were measured at normothermia and after LBH. RESULTS: Serum IL-6 concentrations increased significantly immediately after LBH in all the three groups. ΔIL-6% was lower in CSCI subjects compared with AB subjects. Plasma adrenaline concentrations significantly increased after LBH in AB and TLSCI subjects, but did not change throughout the study in CSCI subjects. Cardiac output and heart rate increased at the end of LBH in all three groups. CONCLUSIONS: Under a similar increase in core temperature, ΔIL-6% was lower in the CSCI group compared with the AB group. These findings suggest that the observed rise in IL-6 during hyperthermia is mediated, at least in part, by plasma adrenaline.

    DOI: 10.1080/02656736.2018.1511838

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  • Hot water immersion induces an acute cytokine response in cervical spinal cord injury. 国際誌

    C A Leicht, K Kouda, Y Umemoto, M Banno, T Kinoshita, T Moriki, T Nakamura, N C Bishop, V L Goosey-Tolfrey, F Tajima

    European journal of applied physiology   115 ( 11 )   2243 - 52   2015年11月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    PURPOSE: The dysfunctional sympathetic nervous system in individuals with cervical spinal cord injury (CSCI) impairs adrenergic responses and may, therefore, contribute to the blunted post-exercise cytokine response. The purpose of this study was to investigate an alternative way to exercise to induce an acute cytokine response by passive core temperature elevation in CSCI. METHODS: Seven male participants with a motor complete CSCI and 8 male able-bodied controls were immersed for 60 min in water set at a temperature 2 °C above the individuals' resting oesophageal temperature. Blood was collected pre, post, and every hour up to 4 h post-immersion. RESULTS: Hot water immersion resulted in an IL-6 plasma concentration mean increase of 133 ± 144 % in both groups (P = 0.001). On a group level, IL-6 plasma concentrations were 68 ± 38 % higher in CSCI (P = 0.06). In both groups, IL-8 increased by 14 ± 11 % (P = 0.02) and IL-1ra by 18 ± 17 % (P = 0.05). Catecholamine plasma concentrations were significantly reduced in CSCI (P < 0.05) and did not increase following immersion. CONCLUSIONS: Passive elevation of core temperature acutely elevates IL-6, IL-8 and IL-1ra in CSCI despite a blunted adrenergic response, which is in contrast to earlier exercise interventions in CSCI. The present study lays the foundation for future studies to explore water immersion as an alternative to exercise to induce an acute cytokine response in CSCI.

    DOI: 10.1007/s00421-015-3206-9

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  • The role of cardiac sympathetic innervation and skin thermoreceptors on cardiac responses during heat stress. 国際誌

    Manabu Shibasaki, Yasunori Umemoto, Tokio Kinoshita, Ken Kouda, Tomoyuki Ito, Takeshi Nakamura, Craig G Crandall, Fumihiro Tajima

    American journal of physiology. Heart and circulatory physiology   308 ( 11 )   H1336-42   2015年6月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    The mechanism(s) for the changes in cardiac function during heat stress remain unknown. This study tested two unique hypotheses. First, sympathetic innervation to the heart is required for increases in cardiac systolic function during heat stress. This was accomplished by comparing responses during heat stress between paraplegics versus tetraplegics, with tetraplegics having reduced/absent cardiac sympathetic innervation. Second, stimulation of skin thermoreceptors contributes to cardiovascular adjustments that occur during heat stress in humans. This was accomplished by comparing responses during leg only heating between paraplegic versus able-bodied individuals. Nine healthy able-bodied, nine paraplegics, and eight tetraplegics participated in this study. Lower body (i.e., nonsensed area for para/tetraplegics) was heated until esophageal temperature had increased by ~1.0°C. Echocardiographic indexes of diastolic and systolic function were performed before and at the end of heat stress. The heat stress increased cardiac output in all groups, but the magnitude of this increase was attenuated in the tetraplegics relative to the able-bodied (1.3 ± 0.4 vs. 2.3 ± 1.0 l/min; P < 0.05). Diastolic function was maintained in all groups. Indexes of left atrial and ventricular systolic function were enhanced in the able-bodied, but did not change in tetraplegics, while these changes in paraplegics were attenuated relative to the able-bodied. These data suggest that the cardiac sympathetic innervation is required to achieve normal increases in cardiac systolic function during heat stress but not required to maintain diastolic function during this exposure. Second, elevated systolic function during heat stress primarily occurs as a result of increases in internal temperature, although stimulation of skin thermoreceptors may contribute.

    DOI: 10.1152/ajpheart.00911.2014

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  • Elevation of interleukin-6 and attenuation of tumor necrosis factor-α during wheelchair half marathon in athletes with cervical spinal cord injuries. 国際誌

    T Ogawa, T Nakamura, M Banno, Y Sasaki, Y Umemoto, K Kouda, T Kawasaki, F Tajima

    Spinal cord   52 ( 8 )   601 - 5   2014年8月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    STUDY DESIGN: Nonrandomized study. OBJECTIVES: The purpose of this study was to determine the effects of long and intensive exercise on interleukin-6 (IL-6) and tumor necrosis factor-α (TNF-α) in athletes with cervical spinal cord injuries (CSCI). SETTING: The 30th Oita International Wheelchair Marathon Race. METHODS: Blood samples from six athletes with CSCI and eight athletes with thoracic and lumber spinal cord injuries (SCI) participating in wheelchair half marathon race were collected before the race, immediately after the race and 2 h after the race. IL-6, TNF-α, adrenaline and blood cell counts were measured. RESULTS: Monocyte count remained stable throughout the study in the CSCI group but was significantly high at 2 h after the race in the SCI group. Plasma IL-6 concentrations were significantly elevated immediately after the race in both groups, although the levels in CSCI were significantly lower than in the SCI group. Plasma adrenaline was significantly elevated immediately after the race in the SCI group but recovered at 2 h after the race. In contrast, plasma adrenaline did not change in the CSCI group throughout the study and was significantly lower than in the SCI group. Plasma TNF-α did not change throughout the study in the SCI group compared with a significant decrease at 2 h after the race in the CSCI group. CONCLUSION: Long and intensive exercise increased IL-6 in the CSCI group despite the small muscle mass and lack of sympathetic nervous system. The post-race fall in plasma TNF-α in the CSCI group could be related to the inhibitory effect of rising IL-6 in the presence of normal monocyte count and stable adrenaline level.

    DOI: 10.1038/sc.2014.88

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  • Wheelchair marathon creates a systemic anti-inflammatory environment in persons with spinal cord injury. 国際誌

    Yusuke Sasaki, Kazunari Furusawa, Fumihiro Tajima, Takeshi Nakamura, Ken Kouda, Nami Kanno, Takashi Kawasaki, Yasunori Umemoto, Katuji Shimizu

    Clinical journal of sport medicine : official journal of the Canadian Academy of Sport Medicine   24 ( 4 )   295 - 301   2014年7月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    OBJECTIVE: To investigate interleukin (IL)-6 and other inflammation markers in athletes with spinal cord injury (SCI) during a wheelchair marathon race. DESIGN: Nonrandomized study in an actual race. SETTING: The 28th Oita International Wheelchair Marathon Race, Japan. PARTICIPANTS: Twenty-eight men with SCI between T7 and L2 (16 full-marathon racers, full-group; and 12 half-marathon racers, half-group). MAIN OUTCOME MEASURES: Plasma IL-6, tumor necrosis factor (TNF)-α, and high-sensitivity C-reactive protein (hsCRP) were measured the day before, immediately after the race, and 2 hours after the race. RESULTS: Plasma IL-6 concentrations increased by 18.4-fold and by 9.4-fold (P < 0.05) in the full- and half-groups immediately after the race (P < 0.05), respectively, but returned to baseline at 2 hours of recovery. In contrast, plasma TNF-α and hsCRP did not change throughout the race in both groups. The fold change in plasma IL-6 immediately after the race relative to the prerace was significantly higher in the full-group than the half-group (P < 0.05). In both groups, plasma IL-6 immediately after the race did not correlate with the average wheelchair speed. Interestingly, plasma IL-6 and hsCRP before the race in the full-group, but not in half-group, correlated negatively with the average wheelchair speed (P < 0.05). CONCLUSIONS: The study demonstrated that half- and full-marathon wheelchair races increased plasma IL-6, but not TNF-α and hsCRP. Furthermore, the top athletes of the full-group had low plasma IL-6 and hsCRP at baseline. Wheelchair marathon competition, especially full-marathon, and daily training seem to have beneficial effects on SCI through the plasma IL-6 response.

    DOI: 10.1097/JSM.0000000000000015

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  • Immediate effects of unaffected arm exercise in poststroke patients with spastic upper limb hemiparesis. 国際誌

    Keiko Sakamoto, Takeshi Nakamura, Hiroyasu Uenishi, Yasunori Umemoto, Hideki Arakawa, Masahiro Abo, Ryuichi Saura, Hiroyoshi Fujiwara, Toshikazu Kubo, Fumihiro Tajima

    Cerebrovascular diseases (Basel, Switzerland)   37 ( 2 )   123 - 7   2014年

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    BACKGROUND: Spasticity is a major disabling symptom in stroke patients. Clinically, one of the goals of management of stroke patients should be to reduce spasticity. Recent evidence suggests that motor recovery after stroke comprises a hierarchical, dynamic framework of interacting mechanisms in brain cortex. We hypothesized that unaffected arm exercise can stimulate the ipsilateral motor cortex and change the affected upper limb function and spasticity in stroke patients. To test the hypothesis, we evaluated the effects of unaffected arm exercise on spasticity of the affected upper limb and motor function in stroke patients. METHODS: The study was performed in 41 chronic stroke patients with upper limb hemiparesis. Affected upper limb spasticity and function were assessed at baseline and after each intervention by the modified Ashworth Scale and Fugl-Meyer Assessment, respectively. Patients were also evaluated clinically by the modified Rankin Scale, Functional Independence Measurement and National Institutes of Health Stroke Scale. Subjects stood for 10 min during the control period, and then cycled an arm crank ergometer at 50% of maximum work load for 10 min by the unaffected arm in standing position. RESULTS: The mean age at study entry was 64.6 ± 1.7 years. The latency between onset of stroke and the study was 109.0 ± 17.0 months (range, 6-495). The cause of hemiparesis was cerebral infarction (n = 21), intracerebral hemorrhage (n = 17) or subarachnoid hemorrhage (n = 3). Exercise significantly improved the modified Ashworth Scale compared with baseline (p < 0.0001). No such change was noted after the control intervention. The Fugl-Meyer Assessment score did not change after exercise compared with baseline (p = 0.95). CONCLUSIONS: We conclude that 10 min of unaffected arm exercise improves the affected upper limb spasticity in stroke patients. Further studies are needed to determine the exact mechanism of such improvement and the long-term effects of unaffected arm exercise on motor performance.

    DOI: 10.1159/000357421

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  • Increase in interleukin-6 immediately after wheelchair basketball games in persons with spinal cord injury: preliminary report. 国際誌

    T Kinoshita, T Nakamura, Y Umemoto, D Kojima, T Moriki, T Mitsui, M Goto, Y Ishida, F Tajima

    Spinal cord   51 ( 6 )   508 - 10   2013年6月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    STUDY DESIGN: Case series. OBJECTIVES: To investigate the effects of wheelchair basketball game on plasma interleukin-6 (IL-6), tumor necrosis factor-α (TNF-α), C-reactive protein (CRP) and blood cell counts in persons with spinal cord injury (SCI). SETTING: The 2009 Mei-shin League of Wheelchair Basketball Games held at Wakayama, Japan. PARTICIPANTS: Five wheelchair basketball players with SCI voluntarily participated in this study. INTERVENTIONS: Blood samples were taken approximately 1 h before the player warm-up for the game and immediately after the game. MAIN OUTCOME MEASURES: IL-6, TNF-α, CRP and blood cell count were measured. RESULTS: Plasma IL-6 level and number of monocytes were significantly increased after the game, compared with pre-game measurements (P<0.05). No changes were observed in other measurements. There was a significant relationship between increased IL-6 levels and accumulated play duration. CONCLUSION: The lack of change in TNF-α and CRP levels suggested that the exercise-induced rise in IL-6 was not related to exercise-induced inflammatory response. Furthermore, the associated increase in the number of monocytes did not correlate with exercise-induced IL-6 changes, negating monocytes as the source of IL-6.

    DOI: 10.1038/sc.2013.4

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  • Exercise significantly increases plasma adrenaline and oxidized low-density lipoprotein in normal healthy subjects but not in persons with spinal cord injury. 国際誌

    Toshihito Mitsui, Takeshi Nakamura, Tomoyuki Ito, Yasunori Umemoto, Keiko Sakamoto, Tokio Kinoshita, Masafumi Nakagawa, Fumihiro Tajima

    Archives of physical medicine and rehabilitation   93 ( 4 )   725 - 7   2012年4月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    OBJECTIVES: To compare plasma concentrations of oxidized low-density lipoprotein (oxLDL) and adrenaline during exercise between persons with spinal cord injury (SCI) and able-bodied (AB) individuals. DESIGN: Randomized controlled study. SETTING: Human laboratory at a medical university. PARTICIPANTS: Persons with SCI (n=7) and AB individuals (n=9). INTERVENTION: Two-hour arm crank ergometer exercise at 60% maximum oxygen consumption. MAIN OUTCOME MEASURES: Plasma oxLDL and adrenaline levels. RESULTS: Exercise significantly increased plasma adrenaline levels in AB persons (mean ± SD: rest, 45.4±32.2 pg/mL; exercise, 200.9±113.7 pg/mL; P<.05) and persons with SCI; however; the magnitude of the increase in those with SCI was attenuated (mean ± SD: rest, 45.4±14.0 pg/mL; exercise, 83.0±55.8 pg/mL; P<.05). Exercise also significantly increased plasma oxLDL levels in AB persons (mean ± SD: rest, 102.2±30.2 U/L; exercise, 179.7±60.0 U/L; P<.05), but not in persons with SCI (mean ± SD: rest, 124.3±66.0 U/L; exercise, 138.9±59.5 U/L). CONCLUSIONS: The results suggest that increases in plasma adrenaline levels during exercise contribute to the increase in plasma oxLDL levels.

    DOI: 10.1016/j.apmr.2011.08.046

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  • Cardiovascular responses to arm static exercise in men with thoracic spinal cord lesions. 国際誌

    Keiko Sakamoto, Takeshi Nakamura, Yasunori Umemoto, Yumi Koike, Yusuke Sasaki, Fumihiro Tajima

    European journal of applied physiology   112 ( 2 )   661 - 6   2012年2月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    Isometric muscle contraction (static exercise) induces circulatory response. Static exercise in individuals with thoracic spinal cord injury (TSCI) induces cardiovascular response and blood redistribution to the non-exercising muscles. The aim of our study was to determine the circulatory response during arm static exercise in individuals with TSCI and able-bodied (AB) controls. Mean blood pressure (MBP), heart rate (HR), cardiac output (CO), leg skin blood flow (SBF), and leg muscle blood flow (MBF) were recorded noninvasively, total peripheral resistance (TPR) was estimated by dividing MBP by CO, and hormonal changes were measured before, during and after static 35% maximal voluntary contraction (MVC) of the arm flexor muscles in seven male individuals with TSCI (T7-T11) and seven age-comparable AB control (32.2 ± 7.6 and 31.0 ± 4.7 years, respectively). The 35% MVC was similar in TSCI and AB individuals (107.3 ± 28.2 and 101.0 ± 22.5 N, respectively). HR, CO, MBP, TPR, SBF and MBF increased in both groups during arm static exercise. Plasma epinephrine concentration increased during arm static exercise in AB controls only (P < 0.05). Circulation to leg muscles was similar in TSCI and AB individuals and the lack of sympathetic vasoconstriction in the paralyzed leg area did not alter the cardiovascular responses during 35% MVC of arm static exercise. We conclude that sympathetic vasoconstriction in the resting leg area did not contribute to the pressor reflex during 35% MVC of arm static exercise.

    DOI: 10.1007/s00421-011-2017-x

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  • Plasma IL-6 levels during arm exercise in persons with spinal cord injury. 国際誌

    Y Umemoto, K Furusawa, K Kouda, Y Sasaki, N Kanno, D Kojima, F Tajima

    Spinal cord   49 ( 12 )   1182 - 7   2011年12月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    STUDY DESIGN: Non-randomized study. OBJECTIVES: Previous studies indicated that at least 2-h leg exercise at more than 60% maximum oxygen consumption (VO(2)max) increased plasma interleukin (IL)-6 in able-bodied (AB) subjects. The purpose of the present study was to compare IL-6 response to arm exercise in AB subjects and persons with spinal cord injury (SCI). SETTING: Wakayama Medical University in Japan. METHODS: Six subjects with SCI between T6 and T10 and seven AB subjects performed 2-h arm crank ergometer exercise at 60%VO(2)max. Plasma catecholamines, IL-6, tumor necrosis factor (TNF)-α and high-sensitivity C-reactive protein (hsCRP) were measured before exercise, 60-min exercise, immediately and 2 h after the completion of exercise. RESULTS: Arm exercise increased myoglobin and plasma IL-6 levels in SCI and AB (P<0.01), but there were no differences in them between the two groups throughout the study. Plasma levels creatine kinase, lactate dehydrogenase, TNF-α and hsCRP did not change throughout the study in both groups. CONCLUSION: These findings suggest neither significant muscle damage nor inflammatory response during exercise. The increase in plasma IL-6 in SCI was not unexpected, confirming that moderate intensity and relatively long-arm exercise is safe and beneficial for SCI subjects with regard to IL-6 excretion, as in AB subjects.

    DOI: 10.1038/sc.2011.74

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    久保, 俊一, 村上, 信五, 日本リハビリテーション医学教育推進機構, 日本耳鼻咽喉科頭頸部外科学会, 日本言語聴覚士協会, 日本理学療法士協会, 日本リハビリテーション医学会, 土井, 勝美, 徳永, 大作

    日本リハビリテーション医学教育推進機構  2022年6月  ( ISBN:9784991177613

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    久保, 俊一, 吉村, 芳弘, 角田, 亘, 百崎, 良, 徳永, 大作, 日本リハビリテーション医学教育推進機構, 日本リハビリテーション医学会

    医学書院  2022年4月  ( ISBN:9784260047395

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    総ページ数:xv, 229p   記述言語:日本語  

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  • リハビリテーション医学・医療コアテキスト

    久保, 俊一, 角田, 亘, 佐浦, 隆一, 三上, 靖夫, 徳永, 大作, 日本リハビリテーション医学教育推進機構, 日本リハビリテーション医学会

    医学書院  2022年3月  ( ISBN:9784260049597

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    久保, 俊一, 海老原, 覚, 上月, 正博, 牧田, 茂, 伊藤, 修 (循環器病学), 角田, 亘, 徳永, 大作, 日本リハビリテーション医学教育推進機構, 日本リハビリテーション医学会

    医学書院  2022年3月  ( ISBN:9784260045919

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    久保, 俊一, 田島, 文博, 日本リハビリテーション医学教育推進機構, 日本リハビリテーション病院・施設協会, 日本慢性期医療協会, 日本理学療法士協会, 日本作業療法士協会, 日本言語聴覚士協会, 日本義肢装具士協会, 日本リハビリテーション医学会, 安保, 雅博, 徳永, 大作

    日本リハビリテーション医学教育推進機構  2021年2月  ( ISBN:9784991177606

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    久保, 俊一, 水間, 正澄, 三上, 靖夫, 角田, 亘, 日本リハビリテーション医学教育推進機構, 日本生活期リハビリテーション医学会, 日本リハビリテーション医学会

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  • リハビリテーション医学・医療Q&A

    日本リハビリテーション医学会, 久保, 俊一, 佐浦, 隆一, 芳賀, 信彦 (リハビリテーション医学), 酒井, 良忠, 篠田, 裕介

    医学書院  2019年1月  ( ISBN:9784260038195

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  • 臨床医とコメディカルのための最新リハビリテーション

    平沢, 泰介, 岡島, 康友, 椿原, 彰夫, 才藤, 栄一, 水間, 正澄, 森田, 定雄, 田島, 文博, 佐浦, 隆一, 佐伯, 覚, 寺田, 弘司

    寺田国際事務所/先端医療技術研究所  2016年9月  ( ISBN:9784925089593

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  • プロフェッショナルな実践のためのQ&A55

    藤本, 篤士, 武井, 典子, 東森, 秀年, 糸田, 昌隆, 大野, 友久, 永田, 俊彦

    医歯薬出版  2016年1月  ( ISBN:9784263422182

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  • イラストと写真でわかる実践装具療法 : 装具の選択と疾患別使用例

    久保, 俊一, 田島, 文博

    金芳堂  2015年11月  ( ISBN:9784765316576

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共同研究・競争的資金等の研究課題

  • 障がい者スポーツにおける陸上競技アスリートのスポーツ傷害実態調査

    研究課題/領域番号:15K01598  2015年4月 - 2018年3月

    日本学術振興会  科学研究費助成事業  基盤研究(C)

    三井 利仁, 田島 文博, 幸田 剣, 西村 行秀, 梅本 安則, 河崎 敬, 坂野 元彦, 中村 健, 伊藤 倫之

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    配分額:4680000円 ( 直接経費:3600000円 、 間接経費:1080000円 )

    本研究は、車椅子陸上競技を行っている脊髄損傷者の障害者アスリートを対象として、理学的所見と画像診断等により肩関節スポーツ傷害発症の実態について調査した。さらに、練習内容と量を調査しそれぞれの選手のフォームを解析した。それらの結果を総合的に検証し、肩関節スポーツ傷害発症メカニズムを考察し、予防法を検討した。調査項目としては、車椅子選手の肩関節に影響を与えうる要素を全て抽出した。具体的には、1.練習内容、2.練習量、3.車いす駆動フォーム、4.理学的所見、5.画像所見(エコーおよびMRI)、について調査した。

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  • 大腿骨頚部骨折術後患者のリハビリテーションにおける至適栄養量に関する研究

    研究課題/領域番号:15K21300  2015年4月 - 2017年3月

    日本学術振興会  科学研究費助成事業  若手研究(B)

    梅本 安則

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    配分額:4160000円 ( 直接経費:3200000円 、 間接経費:960000円 )

    高齢大腿骨頚部骨折患者の術後の安静時代謝量を検討する為に、高齢大腿骨頸部骨折術後患者9名の関西電力病院回復期リハビリ病棟入院時の呼気ガス分析装置による安静時代謝量測定、Harris-benedictの計算式による推定エネルギー量を測定し比較分析した。また、窒素出納を検討する為、24時間蓄尿検査による蛋白排泄量を測定した。
    入院時の安静時代謝量測定による体重当たりの実際必要エネルギー量は23.9±2.7kcal/kgであった。また、計算式による推定エネルギー量は16.7±1.0kcal/kgであった。安静時代謝量は計算式より算出した推定エネルギー量である基礎代謝量に1.2を乗したものであるため、今回計算した推定エネルギー量を補正し、実際に測定した安静時代謝量と比較した。統計学的な比較上、今回測定した安静時代謝量は計算された推定エネルギー量の補正値より有意に高い値であった。
    また、入院時の尿からの1日蛋白排泄量は0.6±0.3g/kg/dayであった。これは、尿以外の窒素喪失を考慮に入れれば、窒素平衡に必要と考えられている0.68g/kg/dayの蛋白摂取量では、窒素平衡が負になると考えられる。これらの入院時安静時代謝量と窒素排泄量から、元来推定される基礎代謝量と蛋白摂取量から計算された栄養摂取では、低栄養・骨格筋量が進行する可能性がある事が示唆された。
    主研究者が海外留学のため、上記の安静時代謝量と蛋白排泄量を基にした栄養設定群における運動療法経過中の2週間毎の骨格筋量、安静時代謝量、血清栄養指標、窒素排泄量、運動機能の経時的変化を測定する事ができなかった為、今後行なっていく必要がある。

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