両示指の受動的な対称・非対称運動におけるTMSを用いた皮質脊髄路興奮特性の解析

カテゴリ: 論文誌(論文単位)

グループ名: 【C】電子・情報・システム部門

発行日: 2016/12/01

タイトル(英語): Study on Corticospinal Excitability during Passive Symmetry and Asymmetry Finger Movements by TMS

著者名: 大沢　佑貴（前橋工科大学大学院），兼子　健汰（前橋工科大学大学院），伊藤　寛知（前橋工科大学大学院），菊地　豊（（公財）脳血管研究所・美原記念病院），小田垣　雅人（前橋工科大学）

著者名(英語): Yuuki Osawa (Graduate School of Maebashi Institute of Technology), Kenta Kaneko (Graduate School of Maebashi Institute of Technology), Kanchi Ito (Graduate School of Maebashi Institute of Technology), Yutaka Kikuchi (Institute of Blood and Vessel, Mihara Memorial Hospital), Masato Odagaki (Maebashi Institute of Technology)

キーワード: 経頭蓋磁気刺激法，受動運動，対称・非対称運動，MP関節角度　　transcranial magnetic stimulation，passive movement，symmetry and asymmetry movements，MP joint angle

要約(英語): Bilateral information in primary motor cortices of human cerebral hemispheres is needed to produce simultaneous bilateral limb movement. The corpus callosum connecting homologous areas of cortex between the hemispheres is an important area to exert bilateral finger movements. It is unclear that the movement state of both fingers influences corticospinal excitability involving in contralateral movement. We measured corticospinal excitability during passive movement of both fingers using transcranial magnetic stimulation (TMS) on the primary motor cortex. The subjects performed passive movement of fingers using servomotors. TMS was applied at the two movement states of maximum flexion and extension position on metacarpophalangeal joint (MP joint) of dominant index finger, respectively. There were three kinds of movement task of symmetry, asymmetry and one-finger movements in this experiment. In one-finger movement task, the highest motor evoked potential (MEP) in electromyogram was measured with TMS timing of maximum extension of MP joint angle. Moreover, MEP with maximum extension of MP joint was lowest in symmetry movement task, but the MEP was conversely lowest with maximum flexion in asymmetry movement task. These results suggested that MEP depended on MP joint angle and the corticospinal excitability was inhibited when contralateral MP joint angle was with maximum extension.

本誌: 電気学会論文誌C（電子・情報・システム部門誌） Vol.136 No.12 （2016） 特集Ⅰ：電気・電子・情報関係学会東海支部連合大会　特集Ⅱ：国際会議ACIS 2014/2015

本誌掲載ページ: 1791-1796 p

原稿種別: 論文／日本語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejeiss/136/12/136_1791/_article/-char/ja/