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Characteristics of muscle structure and sprinting motion affecting hamstring strain

Research Project

Project/Area Number 20H04067
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 59020:Sports sciences-related
Research InstitutionUniversity of Tsukuba

Principal Investigator

Fujii Norihisa  筑波大学, 体育系, 教授 (10261786)

Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥13,260,000 (Direct Cost: ¥10,200,000、Indirect Cost: ¥3,060,000)
Fiscal Year 2022: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2021: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Fiscal Year 2020: ¥8,840,000 (Direct Cost: ¥6,800,000、Indirect Cost: ¥2,040,000)
Keywords下肢動作 / 大腿二頭筋長頭 / 半膜様筋 / 半腱様筋 / 肉離れ / 張力発揮ポテンシャル / 伸張性収縮 / 筋間差 / 疾走動作 / 大腿二頭筋 / 伸長速度 / 筋張力 / 筋モデル / シミュレーション / 遊脚期後半 / ハムストリング / 筋収縮モデル / 走動作 / 筋線維動態 / 腱膜 / 羽状角
Outline of Research at the Start

本研究では,筋線維の動態に影響する下肢体幹の力発揮や動作の特徴,および筋の構造的特性を明らかにすることを目的とする.また,従来の筋腱動態の推定方法では,より伸長される部位や負荷が加わる部位に関する筋内部位差が分析できない.そのため,より詳細な筋腱動態を分析できる手法も開発する.そして,最終的な本研究の到達目標は,ハムストリングス肉離れの受傷リスクが高い選手の抽出する評価方法を提案することである.

Outline of Final Research Achievements

The purpose of this study was to clarify the structural properties of hamstrings and the kinematical characteristics that affect the muscle-tendon dynamics in the hamstrings during sprinting. Sprinting motion of 40 collegiate male athletes were captured during the maximal sprinting phase. The results of this study revealed the following: 1) the differences of muscle-tendon dynamics between the hamstrings muscles during the swing phase of the sprinting motion were affected by muscle-tendon structural properties such as tendon slack length and optimal length of muscle fibers, 2) the influences on muscle-tendon dynamics were affected mainly by tendon slack length, maximal isometric exertion tension, and optimal length of muscle fibers, and 3) the effects of of knee-joint joint movement on muscle-tendon dynamics were greater than the other movements such as hip joint flexion/extension and pelvis movement.

Academic Significance and Societal Importance of the Research Achievements

本研究から,ハムストリングス肉離れの受傷リスクの評価や予防トレーニングへの示唆を抽出するためには,個々の選手,研究対象者の特性を評価することの必要性を主張できる.具体的には,超音波画像診断装置,磁気共鳴画像診断装置(MRI),および力計測器を用いて筋腱の構造的・機械的特性を評価すること,また三次元動作分析装置,ハイスピードカメラ,および表面筋電計から走動作の特徴や走動作中のハムストリングスの表面筋電図を計測し,総合的に評価することが必要である.

Report

(4 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Annual Research Report
  • 2020 Annual Research Report
  • Research Products

    (8 results)

All 2023 2022 2021 2020

All Journal Article (3 results) (of which Peer Reviewed: 3 results,  Open Access: 1 results) Presentation (5 results) (of which Int'l Joint Research: 1 results)

  • [Journal Article] Effects of changes in optimal muscle fiber length in the biceps femoris long head on muscle force during the late swing phase of maximal speed sprinting: A simulation study.2022

    • Author(s)
      Terumitsu MIYAZAKI, Norihisa FUJII
    • Journal Title

      Sports Biomechanics

      Volume: - Pages: 1-16

    • DOI

      10.1080/14763141.2022.2140070

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Influences of Change in Muscle Thickness on the Muscle Fiber Contraction Dynamics of Biceps Femoris Long Head During High-Speed Running2021

    • Author(s)
      宮崎輝光,藤井範久
    • Journal Title

      Journal of the Society of Biomechanisms

      Volume: 45 Issue: 3 Pages: 179-187

    • DOI

      10.3951/sobim.45.3_179

    • NAID

      130008086335

    • ISSN
      0285-0885
    • Related Report
      2021 Annual Research Report 2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] 走動作中遊脚期後半における大腿二頭筋長頭と半膜様筋の筋腱移行部に加わる剪断応力2020

    • Author(s)
      宮崎輝光,藤井範久
    • Journal Title

      バイオメカニズム

      Volume: 25 Pages: 97-111

    • NAID

      130008065595

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Presentation] Influence of pelvic and lower limb joint kinematics on hamstring muscle-tendon strain during the late swing phase of maximal speed sprinting2023

    • Author(s)
      Terumitsu MIYAZAKI, Norihisa FUJII
    • Organizer
      XXIX Congress of International Society of Biomechanics
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 走動作中のハムストリングスにおける伸張性収縮状態の力発揮に対する腱組織の長さ変化の影響2021

    • Author(s)
      宮崎輝光,藤井範久
    • Organizer
      第42回バイオメカニズム学術講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Optimization of the whole-body motion to minimize the muscle-tendon length of biceps femoris long head during the late swing phase of high-speed running2021

    • Author(s)
      Terumitsu MIYAZAKI, Norihisa Fujii
    • Organizer
      XXVIII Congress of the International Society of Biomechanics
    • Related Report
      2021 Annual Research Report
  • [Presentation] 走動作中遊脚期後半における大腿二頭筋長頭の筋腱動態に影響する下肢関節運動2020

    • Author(s)
      宮崎輝光,藤井範久
    • Organizer
      第26回日本バイオメカニクス学会大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 走動作遊脚期後半におけるハムストリングスの筋腱動態を変動させる下肢関節運動2020

    • Author(s)
      宮崎輝光,藤井範久
    • Organizer
      第41回バイオメカニズム学術講演会
    • Related Report
      2020 Annual Research Report

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Published: 2020-04-28   Modified: 2024-01-30  

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