ヤマナカ ケンタロウ
YAMANAKA Kentarou
山中 健太郎 所属
食健康科学部 健康デザイン学科
生活機構研究科 生活科学研究専攻
生活機構研究科 生活機構学専攻
女性健康科学研究所 所属教員
職種
教授
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言語種別 | 日本語 |
発行・発表の年月 | 1999/05 |
形態種別 | 学術雑誌 |
標題 | The effects of long-term bed rest on H-reflex and motor evoked potential in the human soleus muscle during standing |
執筆形態 | 共著 |
掲載誌名 | Neuroscience Letters |
出版社・発行元 | Elsevier |
巻・号・頁 | 266(2),101-104頁 |
著者・共著者 | Yamanaka K. Yamamoto S. Nakazawa K. Yano H. Suzuki Y. and Fukunaga T. |
概要 | H-reflex and motor evoked potential (MEP) induced by transcranial magnetic stimulation (TMS) in soleus muscle of five normal subjects were investigated before and after 20 days 68 head-down bed rest (BR). Soleus H-reflex during standing following bed rest decreased in all five subjects. The size of the maximum H-reflex (Hmax), expressed as a percentage of the maximum M-response (Mmax), decreased from 63.3 +/- 23.3% before BR to 26.7 +/- 12.5% after BR. However, there were no significant differences between MEPs before and after bed rest. Moreover, MEP/Hmax after bed rest was larger than before bed rest in all subjects. These results indicate a strong inhibition of H-reflex and no adaptation of MEP in soleus muscle during standing following bed rest. |
DOI | 10.1016/S0304-3940(99)00284-0 |