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Physiological impact of connection between cardiovascular and postural control systems during quiet standing

Research Project

Project/Area Number 17K13113
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Developmental mechanisms and the body works
Research InstitutionKobe University

Principal Investigator

KIMURA Tetsuya  神戸大学, 人間発達環境学研究科, 准教授 (60533528)

Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2019: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2018: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2017: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywords静的二足立位 / 身体システム / 筋活動 / 身体動揺 / 寒冷負荷 / 筋電気刺激
Outline of Final Research Achievements

This study aimed to experimentally determine the physiological impact of spontaneous body sway and corresponding lower leg muscles contractions on the cardiovascular system during quiet standing. The physiological effect of cardiovascular system on the postural control system was also investigated. The results suggested that 1) muscles contractions associated with spontaneous body sway provide substantial impact on the cardiovascular system during quiet standing; 2) the changes in circulation dynamics affect the postural control in this stance. These results support the physiological impact of connection between cardiovascular and postural control systems during quiet standing.

Academic Significance and Societal Importance of the Research Achievements

ヒトの二足立位は不安定な構造であり、立位バランス調節システムが働くことにより姿勢が維持される。一方で、立位時には、重力の影響に対して各組織への血流を維持するために、循環調節システムが働く。二足立位時には、これら2つの調節システムが同時に活動するが、従来互いに独立して機能すると捉えられてきた。一方で近年、両調節システムが双方向に関連している可能性が指摘されているが、その生理学的意義やメカニズムに関して不明な点が多い。これに対し、本研究は両調節システムが生理学的に影響を及ぼし合う可能性を実験的に示したものであり、不明な点が多い立位バランス調節システムの基礎メカニズム解明に貢献しうるものである。

Report

(4 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (8 results)

All 2020 2019 2018 2017

All Presentation (8 results) (of which Int'l Joint Research: 2 results,  Invited: 1 results)

  • [Presentation] Effect of time-lag between heartbeat and postural sway on arterial blood pressure during quiet standing2020

    • Author(s)
      Oyanagi W, Kimura T
    • Organizer
      International Society of Electrophysiology and Kinesiology XXIII Congress
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 循環・立位バランス両調節システム協働の解明に向けた実験的試み~生理学の観点から~2019

    • Author(s)
      木村哲也
    • Organizer
      BioMecForum21 第92回研究会
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] The Different Degree of Correlation between Fluctuations of H-Wave Amplitude and Blood Pressure among Triceps Surae Muscles2018

    • Author(s)
      Chinami Taki; Naruhiro Shiozawa; Tetsuya Kimura
    • Organizer
      40th Annual International Conference of the IEEE Engineering in Medicine and Biology Society
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] 循環調節システムへの外乱が立位バランス制御則に及ぼす影響2018

    • Author(s)
      成瀬亮; 木村哲也
    • Organizer
      生体医工学シンポジウム2018
    • Related Report
      2018 Research-status Report
  • [Presentation] 弾性負荷が持続的な関節トルク制御に与える影響2018

    • Author(s)
      藤井まりあ; 木村哲也
    • Organizer
      生体医工学シンポジウム2018
    • Related Report
      2018 Research-status Report
  • [Presentation] 静的二足立位における身体動揺が血液循環に及ぼす効果2017

    • Author(s)
      成瀬亮; 瀧千波; 木村哲也
    • Organizer
      日本体育学会第68回大会
    • Related Report
      2017 Research-status Report
  • [Presentation] 20%最大筋力弾性負荷に対する関節トルク制御の特徴2017

    • Author(s)
      藤井まりあ; 瀧千波; 木村哲也
    • Organizer
      生体医工学シンポジウム2017
    • Related Report
      2017 Research-status Report
  • [Presentation] Time-course changes of alpha motor neurons excitabilities in synergistic muscles2017

    • Author(s)
      Chinami Taki; Naruhiro Shiozawa; Tetsuya Kimura
    • Organizer
      生体医工学シンポジウム2017
    • Related Report
      2017 Research-status Report

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Published: 2017-04-28   Modified: 2021-02-19  

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