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Alterations in spike amplitude distribution of the surface electromyogram post-stroke

  • Xiaoyan Li
  • , Aneesha Suresh
  • , Ping Zhou
  • , William Zev Rymer
  • Northwestern University

科研成果: 书/报告/会议事项章节会议稿件同行评审

2 引用 (Scopus)

摘要

We examined surface electromyogram (EMG) characteristics during voluntary isometric activation of the first dorsal interosseous (FDI) muscle in stroke survivors. Five stroke subjects participated in the study. They were instructed to generate isometric contraction at different force levels. The recording was performed in both paretic and contralateral muscles using a matched force protocol. Comparisons of the spike amplitude distribution of the surface EMG signals were made between paretic and contralateral muscles. For a given contraction level, a widened or narrowed spike amplitude distribution was observed in paretic muscles of stroke subjects. Such differences may be induced by degeneration of some spinal motoneurons and/or disorganization of motor unit control properties after stroke.

源语言英语
主期刊名33rd Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS 2011
7504-7507
页数4
DOI
出版状态已出版 - 2011
已对外发布
活动33rd Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS 2011 - Boston, MA, 美国
期限: 30 8月 20113 9月 2011

出版系列

姓名Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS
ISSN(印刷版)1557-170X

会议

会议33rd Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS 2011
国家/地区美国
Boston, MA
时期30/08/113/09/11

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