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Dynamic balancing mechanism in pirouette

Research Project

Project/Area Number 18K10819
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 59020:Sports sciences-related
Research InstitutionTokyo Metropolitan University

Principal Investigator

Imura Akiko  東京都立大学, 人間健康科学研究科, 助教 (30586699)

Project Period (FY) 2018-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2020: ¥130,000 (Direct Cost: ¥100,000、Indirect Cost: ¥30,000)
Fiscal Year 2019: ¥130,000 (Direct Cost: ¥100,000、Indirect Cost: ¥30,000)
Fiscal Year 2018: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Keywords動的バランス / 動力学的解析 / 角運動量 / 重心移動 / バレエ / 回転運動 / 運動方程式 / 動力学的分析 / 逆動力学 / 回転動作 / バランス / バイオメカニクス / ballet / turn / kinetics
Outline of Final Research Achievements

When turning in ballet around a vertical axis, translations of the center of gravity and the angular momenta of front-back and left-right rotations must be adjusted to avoid falling over. This study aimed to investigate the kinetic contribution to the angular momentum and translations to clarify how to adjust the balance during turning. After detremining joint torques with the inverse dynamics calculation for up to quadruple pirouette by dancers, contributions of joint torques, motion-dependent terms, and gravity terms to the horizontal shift of the center of gravity and angular momentum around the center of pressure in the supporting foot were determined using the equations of motion of the whole body. As the number of rotations increased, the forward shift of the center of gravity decreased and the angular momentum of the front-back rotation during turning decreased. The outward shift towards the supporting leg and the angular momentum of left-right rotation did not change.

Academic Significance and Societal Importance of the Research Achievements

片脚回転動作におけるバランス制御の動力学的解析は、転倒を防ぐための関節運動の制御において具体的にどのようなトルク発揮が有効であるかを明らかにすることができる。身体重心の速度における関節運動の貢献の三次元解析,またシミュレーションのための三次元で機能する粘弾性ばねモデルの作成は転倒予防研究におけるブレイクスルーとなる。動力学的解析手法で構築される下肢モデルの開発手法を確立すれば,片脚支持回転動作、片脚立ちジャンプ,歩行時の方向転換における片脚支持期の動作解析などに応用することができ,回転動作だけでなく他の類似動作のシミュレーション研究にも応用できる.

Report

(5 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (8 results)

All 2022 2021 2020 2019 2018

All Journal Article (1 results) (of which Peer Reviewed: 1 results) Presentation (7 results) (of which Int'l Joint Research: 2 results)

  • [Journal Article] Dancers utilize a ‘whip-like effect’ to increase arm angular momentum during multiple-revolution pirouette en dehors2022

    • Author(s)
      Imura A., Iino Y, & Koike S
    • Journal Title

      Sports Biomechanics

      Volume: April5 Issue: 12 Pages: 1-19

    • DOI

      10.1080/14763141.2022.2056074

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Presentation] バレエの片脚支持回転動作における上体各関節角度の調節が上肢角運動量生成メカニズムに及ぼす影響2021

    • Author(s)
      井村 祥子, 飯野 要一, 小池 関也
    • Organizer
      日本体育・スポーツ・健康学会第71回大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] クラッシックバレエにおける片脚支持回転動作中のバランス調整2021

    • Author(s)
      井村祥子、飯野洋一、小池関也
    • Organizer
      第27回日本バイオメカニクス学会大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Initial slight flexion of elbow joints increased vertical angular momentum of upper limbs without affecting horizontal force acting on torso during pirouette en dehors in classical ballet2021

    • Author(s)
      Akiko Imura, Yoichi Iino,Sekiya Koike
    • Organizer
      AP Biomechanics
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 片脚支持回転動作(ピルエット)の連続回転における上肢と体幹部の角運動量調整メカニズム2020

    • Author(s)
      井村祥子,飯野要一,小池関也
    • Organizer
      第25回日本バイオメカニクス学会大会
    • Related Report
      2020 Research-status Report
  • [Presentation] バレエの片脚支持回転動作における上体角運動量生成メカニズム ~全身の関節トルクが鉛直軸周りの身体角運動量の生成に及ぼす影響~2019

    • Author(s)
      井村祥子、飯野要一、小池関也
    • Organizer
      日本体育学会 第70回大会
    • Related Report
      2019 Research-status Report
  • [Presentation] 片脚支持回転動作(ピルエット)における上肢の角運動量生成メカニズム~上肢運動の技術差の観点から~2018

    • Author(s)
      井村祥子,飯野要一,小池関也
    • Organizer
      日本バイオメカニクス学会
    • Related Report
      2018 Research-status Report
  • [Presentation] MOTION OF CENTRE OF PRESSURE DURING STANDING ON TIPTOE ON ONE LEG - ASSOSIATION WITH FOREFOOT SHAPE OF CLASSIC BALLET DANCERS2018

    • Author(s)
      Akiko Imura, Hiroyuki Nagaki, Takuya Goto and Takahiro Higuchi
    • Organizer
      36th International Conference on Biomechanics in Sports 2018
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research

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Published: 2018-04-23   Modified: 2023-01-30  

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