Evaluation of Muscular Fatigue by Surface Electromyogram during Static and Dynamic Contractions of Biceps Brachii Muscle using Electrode Arrays

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  • Shirai Aya
    Graduate School of Informatics and Engineering, The University of Electro-Communications
  • Mito Kazuyuki
    Graduate School of Informatics and Engineering, The University of Electro-Communications
  • Itakuta Naoaki
    Graduate School of Informatics and Engineering, The University of Electro-Communications
  • Mizuno Tota
    Graduate School of Informatics and Engineering, The University of Electro-Communications

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  • 多チャンネル表面筋電図による静的および動的運動時の筋疲労評価
  • タチャンネル ヒョウメンキンデンズ ニ ヨル セイテキ オヨビ ドウテキ ウンドウジ ノ キン ヒロウ ヒョウカ

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<p>The aim of this study was to evaluate of muscular fatigue by muscle fiber condition velocity (MFCV) and electromyogram amplitude (RMS) during static and dynamic contractions. Ten healthy male volunteers performed isometric and dynamic exercises. Isometric exercises were at elbow joint angle 50°, 90° and 130° during 40% of maximum voluntary contraction (MVC). Dynamic exercises were at elbow joint angle from 40° to 140° during 40% of MVC and speed was set at 10°/s and 20°/s. Surface EMG signals were measured by using a 15 channel surface electrode array from biceps brachii muscle. As the result, the values of MFCV were decrease with muscular fatigue in static and dynamic contractions and the values of RMS were increase with muscular fatigue in static and bending contraction.</p>

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