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Motor adaptation to change in single muscle dynamics using electrical muscle stimulation

Research Project

Project/Area Number 19K20067
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 59030:Physical education, and physical and health education-related
Research InstitutionKyoto University

Principal Investigator

Hagio Shota  京都大学, 人間・環境学研究科, 准教授 (90793810)

Project Period (FY) 2019-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2022: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2021: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2020: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2019: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Keywords運動学習 / 筋電図 / 筋電気刺激 / 筋骨格モデル / 二関節筋 / 等尺性力発揮 / 筋疲労 / 大腿四頭筋 / 協働筋 / 骨格筋電気刺激 / 運動制御
Outline of Research at the Start

成長や加齢といった長期的な変化から,筋肥大や怪我・疲労といった短期的な変化に至るまで,我々の身体は刻一刻と変化している.では,こうした身体の内的環境の変化に対して,脳はどのように筋への指令を修正し,運動を適応させているのであろうか?本研究ではまず,短期的に内的環境の変化を引き起こす方法として,高周波の骨格筋電流刺激を使って単一筋のダイナミクスを変化させる手法を提案する.そして,生じた運動誤差を減らす過程で力と筋活動の修正量を定量し,内的環境の変化に対する運動の適応機序を明らかにする.

Outline of Final Research Achievements

I investigated how the muscle activity is modified in response to the fatigue of a single muscle induced by high-frequency electrical muscle stimulation. The experimental results revealed synergistic muscle activity was modified to reduce motor errors following muscle fatigue. Furthermore, in a subsequent study, during maximal effort vertical jumping, electrical stimulation was applied to the anterior tibialis muscle to induce dorsiflexion torque at the ankle joint. Immediately after the stimulation, a decrease in jump height was observed, but subsequent corrective movements that increased the jump height were observed. Taken together, these studies demonstrated that electrical muscle stimulation is an effective method for altering the dynamics of skeletal muscles and movements, which make it possible to investigate the coordinated adjustment of multiple muscle activities during motor adaptation.

Academic Significance and Societal Importance of the Research Achievements

本研究の学術的意義は、筋疲労後の運動修正過程の解明にある。また本研究で用いた単一筋の電気刺激が、筋疲労を誘発させるだけではなく、全身運動中に強制的に関節トルクを印加し、身体ダイナミクスを変調させる方法として有効であること、さらにこうして作り出された新奇な環境に対して全身運動が修正される過程を示した点である。

社会的には、本研究の成果は、スポーツ中などに生じる筋疲労への理解や怪我の防止、さらには、筋電気刺激を活用して強制的に運動を修正することで、動作の獲得を促したり、スポーツ動作のフォームを矯正したりといった手法の開発に貢献することが期待される。

Report

(5 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (7 results)

All 2023 2022 2020 2019

All Journal Article (2 results) (of which Peer Reviewed: 2 results,  Open Access: 1 results) Presentation (5 results) (of which Int'l Joint Research: 2 results,  Invited: 1 results)

  • [Journal Article] Muscle synergies of multidirectional postural control in astronauts on Earth after a long-term stay in space2022

    • Author(s)
      Shota Hagio, Akihiko Ishihara, Masahiro Terada, Hiroko Tanabe, Benio Kibushi, Akira Higashibata, Shin Yamada, Satoshi Furukawa, Chiaki Mukai, Noriaki Ishioka, Motoki Kouzaki
    • Journal Title

      Journal of Neurophysiology

      Volume: 127(5) Issue: 5 Pages: 1230-1239

    • DOI

      10.1152/jn.00232.2021

    • Related Report
      2022 Annual Research Report 2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Visuomotor transformation for the lead leg affects trail leg trajectories during visually guided crossing over a virtual obstacle in humans2020

    • Author(s)
      Shota Hagio, Motoki Kouzaki
    • Journal Title

      Frontiers in Neuroscience

      Volume: 14 Pages: 1-10

    • DOI

      10.3389/fnins.2020.00357

    • NAID

      120006939190

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 筋シナジーからとらえる運動の共通性と相違性2023

    • Author(s)
      萩生翔大
    • Organizer
      日本電気生理運動学会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] シンポジウム「スポーツ動作を獲得する仕組みを基礎研究から考える」:運動学習の基礎研究とその動向2023

    • Author(s)
      萩生翔大
    • Organizer
      京都滋賀体育学会 第152回大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] A New Approach using Electrical Muscle Stimulation to Elucidate Sensorimotor Adaptation in Human Postural Control System2020

    • Author(s)
      Shota Hagio, Anvar Azat, Daichi Nozaki
    • Organizer
      International Society of Electrophysiology and Kinesiology
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] A new approach using electrical muscle stimulation to elucidate sensorimotor adaptation in human postural control system2019

    • Author(s)
      Shota Hagio, Anvar Azat, Daichi Nozaki
    • Organizer
      International Society for Posture and Gait Research
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] 筋電気刺激による閉ループ型摂動印加システムを用いてヒト立位姿勢制御機構の適応性を解明する2019

    • Author(s)
      萩生翔大、Anvar Azati、野崎大地
    • Organizer
      第13回Motor Control研究会
    • Related Report
      2019 Research-status Report

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Published: 2019-04-18   Modified: 2024-01-30  

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