Measurement of a Motor Unit activity from matrix surface Electromyogram

• HATORI Takumu

  奈良先端科学技術大学院大学

• NAKAMURA Hideo

  大阪電気通信大学

• YOSHIDA Masaki

  大阪電気通信大学

• MINATO Kotaro

  奈良先端科学技術大学院大学

Bibliographic Information

Other Title

• B108 マトリクス表面筋電図による運動単位活動の計測

Abstract

The aim of this study is to estimate single motor unit action potential (sMUAP) firing time and muscle fiber conduction velocity (MFCV) by surface electromyogram (sEMG). We made the matrix surface electrode of 8×8 that got 56ch sEMG signals. The 56ch sEMG signals were recorded from the biceps brachii muscles during isometric contraction at 20% maximal voluntary contraction. We used Independent Component Analysis (ICA) and the template matching for the identification of sMUAP. By using the results of identification, we estimated sMUAP firing time. As sEMG is interference of many sMUAP, ICA is useful for making it easy to detect sMUAP train. Using the estimated sMUAP firing time, we calculated the averaged MUAP waveforms at each electrode. Finally we estimated MFCV by using averaged sMUAP waveforms.

Journal

• Journal of the Visualization Society of Japan

  Journal of the Visualization Society of Japan 26 (Supplement2), 79-80, 2006

  The Visualization Society of Japan

Keywords

• motor unit
• matrix surface electromyogram
• independent component analysis

Details

• CRID: 1390282679597459584
• NII Article ID: 10018247236
• NII Article ID: 130003650495
• NII Book ID: AA11907562
• DOI: 10.3154/jvs.26.supplement2_79
• ISSN: 1884037X
• ISSN: 09164731
• Text Lang: ja
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed