Effect of passive stepping on the H-reflex in the wrist flexor

T. Kitamura, T. Nakajima, K. Kamibayashi, S. I. Yamamoto, M. Akai, K. Nakazawa

研究成果: Conference contribution

抄録

It is possible for patients with spinal cord injury and stroke to regain locomotor-like activity with intense step training on a treadmill. However, the neural mechanisms underlying the reattainment of locomotor activity are unknown. In particular, the principles governing interlimb coordination is not known. Therefore, we investigated modulation of the H-reflex..in the flexor carpi radialis (FCR) of 10 subjects.. during passive stepping of the leg. Passive stepping tasks were performed with the aid of a robotic gait trainer system (Lokomat). The H-reflex in the FCR was elicited by electrical stimulation of the median nerve at the elbow level and recorded during 10 different phases of the walking cycle and static standing condition. The results showed that passive stepping significantly suppresses the FCR H-reflex amplitude as compared with static standing condition. These results suggest that movement-related afferent leg feedback mediates suppression of forearm H-reflex during passive stepping.

本文言語English
ホスト出版物のタイトルWorld Congress on Medical Physics and Biomedical Engineering
ホスト出版物のサブタイトルNeuroengineering, Neural Systems, Rehabilitation and Prosthetics
出版社Springer Verlag
ページ201-202
ページ数2
9
ISBN(印刷版)9783642038884
DOI
出版ステータスPublished - 2009
イベントWorld Congress on Medical Physics and Biomedical Engineering: Neuroengineering, Neural Systems, Rehabilitation and Prosthetics - Munich, Germany
継続期間: 2009 9月 72009 9月 12

出版物シリーズ

名前IFMBE Proceedings
番号9
25
ISSN(印刷版)1680-0737

Conference

ConferenceWorld Congress on Medical Physics and Biomedical Engineering: Neuroengineering, Neural Systems, Rehabilitation and Prosthetics
国/地域Germany
CityMunich
Period09/9/709/9/12

ASJC Scopus subject areas

  • バイオエンジニアリング
  • 生体医工学

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