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Development of a training regimen to increase passive muscle stiffness: A new way to improve athletic performance

Research Project

Project/Area Number 21K17578
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 59020:Sports sciences-related
Research InstitutionNational Agency for the Advancement of Sports and Health

Principal Investigator

Ando Ryosuke  独立行政法人日本スポーツ振興センター国立スポーツ科学センター, スポーツ科学・研究部, 研究員 (10804792)

Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2022: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2021: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Keywords安静時弾性 / 超音波エラストグラフィ / 腓腹筋内側頭 / 外側広筋 / 長距離走者 / ランニング / 接地時間 / 弾性 / 剛性率 / スティフネス / 筋スティフネス / RTD / 下腿三頭筋 / ドロップジャンプ / 機械的ストレス / 運動パフォーマンス
Outline of Research at the Start

近年,力をいれていない時(安静時)の骨格筋のスティフネス(≒硬さ)が疾走速度やジャンプなどの運動パフォーマンスに好影響を及ぼす可能性が示されている.しかしながら,安静時の筋スティフネスを増加させる方法は確立されていない.そこで本研究では,ジャンプトレーニング中の筋収縮様式に着目し,短い接地時間でのドロップジャンプトレーニングにより,筋スティフネスが増加するという仮説を検証することを目的としている.また,確立されたトレーニングによる筋スティフネスの増加が疾走速度やジャンプのパフォーマンスを向上させるか否かを明らかにすることにより,スポーツの現場への新たなトレーニング法の提案が期待できる.

Outline of Final Research Achievements

Muscle elasticity was not increased after long-term jumping training in humans in our previous study, although it was increased in rabbits in a previous study. I hypothesized that subjects who jump with a shorter contact time would increase their muscle elasticity after long-term training. Well-trained long-distance runners participated in this study. Contact time was calculated using a high-speed camera during running on a treadmill, and resting muscle elasticity was measured in the medial gastrocnemius and vastus lateralis using ultrasound shear wave elastography. There were no siginificant correlations between contact time and muscle elasticity in both muscles. Therefore, my hypothesis was not supported in long-distance runners who run several hundred kilometers.

Academic Significance and Societal Importance of the Research Achievements

研究代表者らの以前の研究では、筋の弾性と運動パフォーマンスには正の相関関係が見られていることから、筋の弾性を高めるようなトレーニングの開発が望まれている。しかしながら、本研究の結果から、筋の弾性を高めるためのトレーニングにおいて筋への衝撃の大きさは重要な因子ではないと言えるであろう。これは過度な強度のトレーニングを避け、オーバーユースによるスポーツ外傷からアスリートを守ることにつながる。実際、研究代表者の別の先行研究では、8週間のジャンプトレーニングにより筋の弾性はむしろ低下しているため、筋の弾性の変化と運動強度は切り分けて考える必要があることを啓発していく必要があるであろう。

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • Research Products

    (16 results)

All 2024 2023 2022 2021

All Journal Article (12 results) (of which Peer Reviewed: 12 results,  Open Access: 5 results) Presentation (4 results) (of which Int'l Joint Research: 1 results,  Invited: 1 results)

  • [Journal Article] Longer Ground Contact Time Is Related to a Superior Running Economy in Highly Trained Distance Runners2024

    • Author(s)
      Fumiya Tanji, Hayato Ohnuma, Ryosuke Ando, Ryo Yamanaka, Tatsuaki Ikeda, Yasuhiro Suzuki
    • Journal Title

      The Journal of Strength & Conditioning Research

      Volume: 38 Issue: 5 Pages: 985-990

    • DOI

      10.1519/jsc.0000000000004737

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Association of the rate of torque development and joint angle with passive muscle stiffness2024

    • Author(s)
      Ando Ryosuke
    • Journal Title

      European Journal of Applied Physiology

      Volume: In press Issue: 9 Pages: 2665-2673

    • DOI

      10.1007/s00421-024-05483-6

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Jump performance as indicator of tapering and peaking2023

    • Author(s)
      緒方 博紀、飯塚 太郎、安藤 良介、山下 大地、尾崎 宏樹
    • Journal Title

      Journal of High Performance Sport

      Volume: 11 Issue: 0 Pages: 38-51

    • DOI

      10.32155/jissjhps.11.0_38

    • ISSN
      2434-7299, 2434-7302
    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Passive muscle stiffness is correlated with the intramuscular adipose tissue in young individuals2023

    • Author(s)
      Yoshiko Akito, Ando Ryosuke, Akima Hiroshi
    • Journal Title

      European Journal of Applied Physiology

      Volume: 123 Issue: 5 Pages: 1081-1090

    • DOI

      10.1007/s00421-023-05137-z

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Verification of surface electromyographic activity of the oblique externus abdominis using ultrasound shear wave elastography2022

    • Author(s)
      Chino Kentaro, Ando Ryosuke, Suzuki Yasuhiro
    • Journal Title

      Physiological Reports

      Volume: 10 Issue: 9

    • DOI

      10.14814/phy2.15295

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] パラリンピック競技におけるバドミントン選手の体力測定とトレーニング介入事例2022

    • Author(s)
      亀田麻依、大石益代、安藤良介、袴田智子
    • Journal Title

      トレーニング科学

      Volume: 34 Pages: 233-243

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Effect of moderate- or high-intensity inspiratory muscle strength training on maximal inspiratory mouth pressure and swimming performance in highly trained competitive swimmers2022

    • Author(s)
      Ohya Toshiyuki, Kusanagi Kenta, Koizumi Jun, Ando Ryosuke, Katayama Keisho, Suzuki Yasuhiro
    • Journal Title

      International Journal of Sports Physiology and Performance

      Volume: 17 Issue: 3 Pages: 343-349

    • DOI

      10.1123/ijspp.2021-0119

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Thigh muscularity and sprinting performance of national‐level long‐distance runners2022

    • Author(s)
      Ando Ryosuke, Tanji Fumiya, Ohnuma Hayato, Ikeda Tatsuaki, Yamanaka Ryo, Suzuki Yasuhiro
    • Journal Title

      Journal of Human Kinetics

      Volume: 81 Pages: 65-72

    • DOI

      10.2478/hukin-2022-0006

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Relationship between resting medial gastrocnemius stiffness and drop jump performance2021

    • Author(s)
      Ando Ryosuke, Sato Shinya, Hirata Naoya, Tanimoto Hiroki, Imaizumi Naoto, Suzuki Yasuhiro, Hirata Kosuke, Akagi Ryota
    • Journal Title

      Journal of Electromyography and Kinesiology

      Volume: 58 Pages: 102549-102549

    • DOI

      10.1016/j.jelekin.2021.102549

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Effects of a 5-day hypoxic training on anaerobic and aerobic capacities of elite female 400-m runners2021

    • Author(s)
      山中 亮、丹治 史弥、大沼 勇人、安藤 良介、前村 公彦、鈴木 康弘
    • Journal Title

      Journal of High Performance Sport

      Volume: 8 Issue: 0 Pages: 19-34

    • DOI

      10.32155/jissjhps.8.0_19

    • NAID

      130008063879

    • ISSN
      2434-7299, 2434-7302
    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Change in short distance swimming performance following inspiratory muscle fatigue2021

    • Author(s)
      Muranaka Miina, Suzuki Yasuhiro, Ando Ryosuke, Sengoku Yasuo
    • Journal Title

      The Journal of Sports Medicine and Physical Fitness

      Volume: 61 Issue: 11 Pages: 1433-1440

    • DOI

      10.23736/s0022-4707.20.11775-4

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Relationship between drop jump training-induced changes in passive plantar flexor stiffness and explosive performance2021

    • Author(s)
      Ando Ryosuke, Sato Shinya, Hirata Naoya, Tanimoto Hiroki, Imaizumi Naoto, Suzuki Yasuhiro, Hirata Kosuke, Akagi Ryota
    • Journal Title

      Frontiers in Physiology

      Volume: 12 Pages: 777268-777268

    • DOI

      10.3389/fphys.2021.777268

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 安静時の筋スティフネスとRTDの関係は筋長に依存する2023

    • Author(s)
      安藤 良介
    • Organizer
      第36回日本トレーニング科学会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 骨格筋の弾性は運動機能を推定する因子になり得るか?2023

    • Author(s)
      安藤良介
    • Organizer
      第4回日本運動器理学療法超音波フォーラム
    • Related Report
      2022 Research-status Report
    • Invited
  • [Presentation] Physical fitness tests and training interventions for Japanese elite Para badminton players2022

    • Author(s)
      Mai Kameda, Masuyo Oishi, Ryosuke Ando, Noriko Hakamada
    • Organizer
      The 27th Annual Congress of the European College of Sport Science
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] 長距離走者に対する6週間のスプリントトレーニングが長距離走パフォーマンスに及ぼす影響2022

    • Author(s)
      安藤良介、小島千尋、岡本紗弥、笠井信一、角大地、高尾憲司、後藤一成、鈴木康弘
    • Organizer
      第35回日本トレーニング科学会大会
    • Related Report
      2022 Research-status Report

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Published: 2021-04-28   Modified: 2025-01-30  

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