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2011 Fiscal Year Final Research Report

Possible factors to increase mechanomyographic signals during submaximal prolonged activity investigated from MUAP and MUMS(motor unit mechanical signal) wave-forms

Research Project

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Project/Area Number 21500627
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Sports science
Research InstitutionYokohama National University

Principal Investigator

MORIMOTO Shigeru  横浜国立大学, 教育人間科学部, 教授 (70119858)

Project Period (FY) 2009 – 2011
Keywords筋音信号
Research Abstract

During prolonged isometric constant contraction at low level, mechanomyographic signal and its integrated value showed initial constant and then increased. It proposed the factors based on the motor unit activities to influence the mechanomyographic signal increment during the activity as follows : motor unit recruitment, motor unit firing interval changes and motor unit synchronization. However, yet not, the experimental results did reported. In the present experiments, it showed the possibility of the mechanomyographic signal increment in the motor unit recruitment, but there was no relationship between mechanomyographic signal increment and the motor unit synchronization, and motor unit firing interval changes.

  • Research Products

    (8 results)

All 2011 2010 2009

All Journal Article (2 results) Presentation (6 results)

  • [Journal Article] 随意筋力発揮時の単一運動単位筋振動信号(筋音)振幅の放電間隔依存性2011

    • Author(s)
      森本茂
    • Journal Title

      体力科学

      Volume: 60 Pages: 207-216

  • [Journal Article] 持続的筋力発揮時の運動単位筋振動信号と運動単位の同期化活動2009

    • Author(s)
      森本茂、石渡千草、宮本奈芳美、加茂美冬
    • Journal Title

      体力科学

      Volume: 58 Pages: 365-378

  • [Presentation] 持続的筋力発揮時の運動単位の活動参加と筋振動(筋音)信号波形2011

    • Author(s)
      森本茂
    • Organizer
      第66回日本体力医学会大会
    • Place of Presentation
      山口
    • Year and Date
      20110900
  • [Presentation] Relationship between inter-spike interval and amplitude of mechanomyographic signal from singlemotorunits during voluntary muscle contraction2011

    • Author(s)
      Shigeru MORIMOTO
    • Organizer
      88^<th> Annual Meeting of the Physiological Society of Japan
    • Place of Presentation
      Yokohama Japan
    • Year and Date
      20110328-30
  • [Presentation] 間欠的筋力発揮時の単一運動単位"筋音"信号の変化動態2010

    • Author(s)
      森本茂
    • Organizer
      第65回日本体力医学会大会
    • Place of Presentation
      千葉
    • Year and Date
      20100900
  • [Presentation] 運動単位放電間隔一定条件下における持続的筋力発揮時の運動単位筋振動現象の変化動態2009

    • Author(s)
      森本茂
    • Organizer
      第11回日本電気生理運動学会大会
    • Place of Presentation
      京都
    • Year and Date
      20091100
  • [Presentation] 運動単位放電間隔一定条件下における持続的筋力発揮時の運動単位筋振動現象の変化動態2009

    • Author(s)
      森本茂
    • Organizer
      第65回日本体力医学会大会
    • Place of Presentation
      新潟
    • Year and Date
      20090900
  • [Presentation] 低い目標筋力での持続的筋力発揮時の運動単位筋振動現象と運動単位の同期化活動2009

    • Author(s)
      森本茂
    • Organizer
      第17回日本運動生理学会大会
    • Place of Presentation
      東京
    • Year and Date
      20090700

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Published: 2013-07-31  

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