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Clarification of the optimal jumping motion according to the individual morphology

Research Project

Project/Area Number 19K24294
Research Category

Grant-in-Aid for Research Activity Start-up

Allocation TypeMulti-year Fund
Review Section 0909:Sports sciences, physical education, health sciences, and related fields
Research InstitutionUniversity of Tsukuba (2020)
Waseda University (2019)

Principal Investigator

Sado Natsuki  筑波大学, 体育系, 助教 (60844983)

Project Period (FY) 2019-08-30 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2020: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
KeywordsMRI / 形態 / 慣性パラメータ / 個人差 / 動作 / モーションキャプチャー / 関節中心 / 動作分析 / シミュレーション
Outline of Research at the Start

各種身体運動においてパフォーマンスが最大となる最適動作は、個人の体つきに応じて異なることが予想される。しかし、これまで個人の最適動作に迫る試みは十分に行われていなこなかった。本研究では、跳躍動作を対象に、体つきの個人差とパフォーマンスを最大化する身体動作の関係を検討する。本研究では、MRIを用いた形態測定とモーションキャプチャ―システムを用いた動作測定を行い、得られたデータを組み合わせたシミュレーション手法を用いることで研究を進行する。

Outline of Final Research Achievements

This study aimed to develop a methodology to accurately analyse the individual morphology and motion and to test the hypothesis that optimal motions for motor performance differ according to individual morphological characteristics. Using MRI, I established a method to assess morphological characteristics considering the three-dimensional distribution of body tissues with different densities. For accurate motion analysis, I examined functional methods for defining joint centres, which have critical effects on motion analysis results. Especially, I proposed a functional method for the ankle joint having no established functional methods currently. I examined a simulation methodology with combining MRI and motion data, in which an individual who has undergone a detailed morphological analysis performs a jumping motion by another person.

Academic Significance and Societal Importance of the Research Achievements

MRI方法論の構築により、「競技種目に従事するアスリートの特異的な適応(例:「協働筋群の中で発達度合いが均一でない」)」のような身体の不均一性を考慮しつつ物理的な動かしにくさを詳細に検討することが可能となった。
足関節中心について従来法では特に足関節内外反負荷が過小評価されていることが明らかになり、各種動作の足関節捻挫リスクの再考の必要性を示された。提案した手法はそのための有益な手段となる。
検討したシミュレーションは跳躍だけでなく様々な動作で応用可能である。今後体つきの個人差に応じた最適動作が様々なスポーツ動作で検討され、将来的には科学的に個人に即した動作の提示に繋がることが期待される。

Report

(3 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • Research Products

    (13 results)

All 2021 2020 2019

All Journal Article (7 results) (of which Peer Reviewed: 7 results,  Open Access: 5 results) Presentation (6 results) (of which Int'l Joint Research: 1 results,  Invited: 1 results)

  • [Journal Article] Positional difference of malleoli-midpoint from three-dimensional geometric centre of rotation of ankle and its effect on ankle joint kinetics2021

    • Author(s)
      Sado Natsuki, Shiotani Hiroto, Saeki Junya, Kawakami Yasuo
    • Journal Title

      Gait & Posture

      Volume: 83 Pages: 223-229

    • DOI

      10.1016/j.gaitpost.2020.10.018

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Lumbar axial torque actively induces trunk axial rotation during sidestep cutting manoeuvre: Insight to expand the trunk control concept2020

    • Author(s)
      Sado Natsuki, Yoshioka Shinsuke, Fukashiro Senshi
    • Journal Title

      Journal of Biomechanics

      Volume: 111 Pages: 110003-110003

    • DOI

      10.1016/j.jbiomech.2020.110003

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Non-extension movements inducing over half the mechanical energy directly contributing to jumping height in human running single-leg jump2020

    • Author(s)
      Sado Natsuki, Yoshioka Shinsuke, Fukashiro Senshi
    • Journal Title

      Journal of Biomechanics

      Volume: 113 Pages: 110082-110082

    • DOI

      10.1016/j.jbiomech.2020.110082

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Different effects of approach length on sagittal and frontal joint kinetics during a running single-leg jump2020

    • Author(s)
      Sado Natsuki, Yoshioka Shinsuke, Fukashiro Senshi
    • Journal Title

      ISBS-Conference Proceedings Archive

      Volume: 38 Pages: 9-9

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Absent muscle coordination patterns and reduced force exertion in the novice of clean exercise2020

    • Author(s)
      Kibushi Benio, Sado Natsuki, Kouzaki Motoki
    • Journal Title

      ISBS-Conference Proceedings Archive

      Volume: 38 Pages: 71-71

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Three-dimensional kinetic function of the lumbo-pelvic-hip complex during block start2020

    • Author(s)
      Sado Natsuki、Yoshioka Shinsuke、Fukashiro Senshi
    • Journal Title

      PLOS ONE

      Volume: 15 Issue: 3 Pages: e0230145-e0230145

    • DOI

      10.1371/journal.pone.0230145

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Free-leg side elevation of pelvis in single-leg jump is a substantial advantage over double-leg jump for jumping height generation2020

    • Author(s)
      Sado Natsuki、Yoshioka Shinsuke、Fukashiro Senshi
    • Journal Title

      Journal of Biomechanics

      Volume: 104 Pages: 109751-109751

    • DOI

      10.1016/j.jbiomech.2020.109751

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 新の跳ぶ科学:下肢の伸展動作に留まらない巧みな全身動作としての跳躍2021

    • Author(s)
      佐渡夏紀
    • Organizer
      第28回身体運動科学シンポジウム
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] Acute effects of static stretching of ankle and metatarsophalangeal joint on plantar fascial and muscular stiffness, passive joint range of motion, and foot arch deformation during drop jump2020

    • Author(s)
      Shiotani Hiroto, Sado Natsuki, Kurumisawa Keisuke, Saeki Junya, Kawakami Yasuo
    • Organizer
      日本バイオメカニクス学会第26回大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] ボディビルダーの減量における大腿部筋横断面積および非収縮要素横断面積の変化2020

    • Author(s)
      一瀬星空, 長瀬嘉剛, 佐渡夏紀, 呂匯, 山田雄基, 川上泰雄
    • Organizer
      第33回日本トレーニング科学会大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Simulation of the trajectory of shuttlecock in badminton2019

    • Author(s)
      Takatsuka, R., Sado N., Fukashiro, S., Yoshioka, S.
    • Organizer
      24th Annual Congress of the ECSS
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] 方向転換における体幹の機能は固定・安定化だけなのか?-Coreの概念の再考と体幹のトレーニングへの示唆-2019

    • Author(s)
      佐渡夏紀, 吉岡伸輔, 深代千之.
    • Organizer
      第32回日本トレーニング科学会大会
    • Related Report
      2019 Research-status Report
  • [Presentation] 走高跳で用いられる曲線助走は直線助走と同様の力発揮でより大きな跳躍高を導く2019

    • Author(s)
      佐渡夏紀, 吉岡伸輔, 深代千之.
    • Organizer
      彗ひろば (バイオメカニクス学会研究会)
    • Related Report
      2019 Research-status Report

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Published: 2019-09-03   Modified: 2022-01-27  

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