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Examination of the Influence of elasticity and viscosity on the force production based on the direct length measurements

Research Project

Project/Area Number 16K13009
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field Sports science
Research InstitutionRitsumeikan University

Principal Investigator

Fukutani Atsuki  立命館大学, スポーツ健康科学部, 助教 (80722644)

Co-Investigator(Kenkyū-buntansha) 長野 明紀  立命館大学, スポーツ健康科学部, 教授 (30392054)
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Fiscal Year 2018: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2017: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2016: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywordsアクチン / ミオシン / タイチン / クロスブリッジ / サルコメア / 筋 / 弾性 / 粘性 / スキンドファイバー / 腱 / 生理学 / 解剖学 / リハビリテーション
Outline of Final Research Achievements

It is widely suggested that the elastic energy stored in the muscle and tendon contributes to the performance of human movements. However, most studies did not measure their length changes directly, and results of some studies violate the law of the conservation of energy. Taken these into account, we performed the mechanical testing with the direct length measurements of muscles and/or tendons. We found from the muscle mechanical testing that elastic energy stored in the muscle can be used during the subsequent shortening phase but the part of stored energy is dissipated as heat, indicating that muscles show viscoelastic property.

Academic Significance and Societal Importance of the Research Achievements

我々ヒト生体の身体運動は、骨格筋が発揮した力によって生み出される。したがって、身体運動を生成するメカニズムを把握するためには、骨格筋の収縮特性を明らかにする必要がある。骨格筋を構成する筋および腱は粘弾性を有しており、長さ変化に応じた力が発生する。本研究では、筋の粘弾性のもととなっている結合したクロスブリッジ、タイチンの力生成メカニズムを検証し、これらが、stretch-shortening cycleという反動動作による筋力増強効果の一部を担っていることを見出した。

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (12 results)

All 2018 2017 2016 Other

All Int'l Joint Research (2 results) Journal Article (6 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 6 results,  Open Access: 2 results,  Acknowledgement Compliant: 2 results) Presentation (4 results) (of which Int'l Joint Research: 2 results)

  • [Int'l Joint Research] University of Calgary(Canada)

    • Related Report
      2017 Research-status Report
  • [Int'l Joint Research] カルガリー大学(カナダ)

    • Related Report
      2016 Research-status Report
  • [Journal Article] Residual Force Enhancement Is Attenuated in a Shortening Magnitude-dependent Manner.2018

    • Author(s)
      Fukutani A, Herzog W.
    • Journal Title

      Med & Sci in Sports & Exerc

      Volume: 50 Issue: 10 Pages: 2007-2014

    • DOI

      10.1249/mss.0000000000001670

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Isometric preactivation before active lengthening increases residual force enhancement2018

    • Author(s)
      Fukutani A, Shimoho K, Isaka T.
    • Journal Title

      Scand J Med Sci Sports

      Volume: -

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Residual Force Enhancement is Preserved for Conditions of Reduced Contractile Force2018

    • Author(s)
      Fukutani A, Herzog W.
    • Journal Title

      Medicine & Science in Sports & Exercise

      Volume: - Issue: 6 Pages: 1186-1191

    • DOI

      10.1249/mss.0000000000001563

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Influence of residual force enhancement and elongation of attached cross-bridges on stretch-shortening cycle in skinned muscle fibers.2017

    • Author(s)
      Fukutani A, Joumaa V, Herzog W.
    • Journal Title

      Physiological Reports

      Volume: 5 Issue: 22

    • DOI

      10.14814/phy2.13477

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Force Depression in Plantar Flexors Exists Equally in Plantar Flexed and Dorsiflexed Regions.2017

    • Author(s)
      Fukutani A, Misaki J, Isaka T.
    • Journal Title

      Front Physiol

      Volume: 8 Pages: 183-183

    • DOI

      10.3389/fphys.2017.00183

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Influence of joint angle on residual force enhancement in human plantar flexors2017

    • Author(s)
      Fukutani A, Misaki J, Isaka T.
    • Journal Title

      Front Physiol

      Volume: 8 Pages: 234-234

    • DOI

      10.3389/fphys.2017.00234

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Presentation] Residual force enhancement is attenuated by shortening in a magnitude-dependent manner2018

    • Author(s)
      Fukutani A, Herzog W.
    • Organizer
      62nd Annual Meeting Biophysical Society
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Relationship between residual force enhancement and muscle fatigue2017

    • Author(s)
      Fukutani A, Herzog W.
    • Organizer
      41st Annual Meeting of the American Society of Biomechanics
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Influence of residual force enhancement and elongation of attached cross bridges on the stretch-shortening cycle2017

    • Author(s)
      Fukutani A, Joumaa V, Herzog W.
    • Organizer
      26th Congress of the International Society of Biomechanics
    • Related Report
      2017 Research-status Report
  • [Presentation] Influence of active state and residual force enhancement on the increase in joint torque by stretch-shortening cycle2016

    • Author(s)
      福谷充輝 御前純 伊坂忠夫
    • Organizer
      第24回日本バイオメカニクス学会
    • Place of Presentation
      立命館大学(滋賀県・草津市)
    • Year and Date
      2016-09-13
    • Related Report
      2016 Research-status Report

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Published: 2016-04-21   Modified: 2020-03-30  

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