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Elucidation of the mechanism of reciprocal Ia inhibition and recurrent inhibition leading to excessive co-contraction

Research Project

Project/Area Number 18K17769
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 59010:Rehabilitation science-related
Research InstitutionNiigata University of Health and Welfare

Principal Investigator

Hirabayashi Ryo  新潟医療福祉大学, リハビリテーション学部, 助教 (60804375)

Project Period (FY) 2018-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2019: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2018: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Keywords脊髄相反性抑制 / 筋電図 / 同時収縮 / H反射 / 電気刺激 / Ia相反抑制 / 足関節 / 筋活動 / D1抑制
Outline of Final Research Achievements

The purpose of this study was to determine the relationship between spinal reciprocal inhibition during co-contractions in a two-year project.Two experiments were performed and revealed that spinal reciprocal inhibition was modulated depending on the co-contraction intensity and the muscle activity ratio of the antagonist muscles to each other.It has been reported that spinal reciprocal inhibition disappears with co-contractions, but spinal reciprocal inhibition remains with co-contraction intensity, indicating that the ability to perform joint movements remains during moderate co-contractions.
These research results were published in two international journals and one domestic journal, and 10 conference presentations were made.

Academic Significance and Societal Importance of the Research Achievements

本研究の知見は,同時収縮中の脊髄にある運動制御の機能を相反性抑制に着目して解明した.本研究は,これまで明らかにされていなかった,低強度の同時収縮中は脊髄相反性抑制の機能が残存することを発見しました.また,その機能葉、拮抗筋同士の筋活動比に依存することも新規性が高い知見となった.この基礎的知見を応用して,同時収縮中の運動パフォーマンスの検討,中枢疾患や高齢者で引き起こされる過剰な同時収縮の治療法として役立つ可能性があると考えている.

Report

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

    (18 results)

All 2019 2018 Other

All Journal Article (3 results) (of which Peer Reviewed: 3 results,  Open Access: 2 results) Presentation (10 results) (of which Invited: 1 results) Remarks (5 results)

  • [Journal Article] Effects of Reciprocal Ia Inhibition on Contraction Intensity of Co-contraction2019

    • Author(s)
      Hirabayashi Ryo、Edama Mutsuaki、Kojima Sho、Nakamura Masatoshi、Ito Wataru、Nakamura Emi、Kikumoto Takanori、Onishi Hideaki
    • Journal Title

      Frontiers in Human Neuroscience

      Volume: 12 Pages: 527-527

    • DOI

      10.3389/fnhum.2018.00527

    • Related Report
      2019 Annual Research Report 2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Spinal Reciprocal Inhibition in the Co-contraction of the Lower Leg Depends on Muscle Activity Ratio2019

    • Author(s)
      Hirabayashi R, Edama M, Kojima S, Ito W, Nakamura E, Kikumoto T, Onishi H.
    • Journal Title

      Exp Brain Res.

      Volume: in press Issue: 6 Pages: 1469-1478

    • DOI

      10.1007/s00221-019-05523-0

    • Related Report
      2019 Annual Research Report 2018 Research-status Report
    • Peer Reviewed
  • [Journal Article] Effects of repetitive passive movement on ankle joint on spinal reciprocal inhibition.2019

    • Author(s)
      Hirabayashi R, Edama M, Kojima S, Miyaguchi S, Onishi H.
    • Journal Title

      Exp Brain Res.

      Volume: 237(12) Issue: 12 Pages: 3409-3417

    • DOI

      10.1007/s00221-019-05689-7

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] 足底屈背屈実験装置を用いた反復他動運動が脊髄相反性抑制に与える効果2019

    • Author(s)
      平林 怜
    • Organizer
      第24回日本基礎理学療法学会学術大会
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] 反復他動運動は脊髄相反性抑制を増強させる2019

    • Author(s)
      平林 怜,江玉睦明,小島翔,宮口翔太,大西秀明
    • Organizer
      第24回日本基礎理学療法学会学術大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 反復他動運動は拮抗筋に対する相反抑制機能が向上する2019

    • Author(s)
      平林 怜,江玉睦明,伊藤渉,中村絵美,熊崎昌,菊元孝則,稲葉洋美,大森豪
    • Organizer
      第30回日本臨床スポーツ医学会学術集会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 反復他動運動が脊髄相反性抑制に及ぼす影響2019

    • Author(s)
      平林 怜,江玉睦明,小島翔,宮口翔太,大西秀明
    • Organizer
      第74回日本体力医学会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 反復他動運動が脊髄相反性抑制に及ぼす影響2019

    • Author(s)
      平林 怜,江玉睦明,小島翔,宮口翔太,大西秀明
    • Organizer
      第4回夏の学校
    • Related Report
      2019 Annual Research Report
  • [Presentation] 足関節の反復他動運動がIa相反抑制に及ぼす影響2019

    • Author(s)
      平林 怜,江玉睦明,小島翔,宮口翔太,菊元孝則,大西秀明
    • Organizer
      第二回足の構造と機能研究会学術大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 低強度の同時収縮が脊髄相反性抑制に及ぼす影響2018

    • Author(s)
      平林怜,江玉睦明,菊元孝則,中村絵美,伊藤渉,大西秀明
    • Organizer
      第73回日本体力医学会
    • Related Report
      2018 Research-status Report
  • [Presentation] 関節運動前の過剰な事前収縮は運動パフォーマンス低下に影響2018

    • Author(s)
      平林怜,江玉睦明,菊元孝則,中村絵美,伊藤渉,稲葉洋美,大森豪
    • Organizer
      第29回日本臨床スポーツ医学会学術集会
    • Related Report
      2018 Research-status Report
  • [Presentation] 同時収縮中の収縮強度変化が脊髄相反性抑制に及ぼす影響2018

    • Author(s)
      平林怜,江玉睦明,小島翔,伊藤渉,中村絵美,菊元孝則,大西秀明
    • Organizer
      第48回日本臨床神経生理学会
    • Related Report
      2018 Research-status Report
  • [Presentation] 同時収縮中の収縮強度の割合がIa相反抑制とD1抑制に与える影響2018

    • Author(s)
      平林怜,江玉睦明,小島翔,伊藤渉,中村絵美,菊元孝則,大西秀明
    • Organizer
      第53回日本基礎理学療法学会学術集会
    • Related Report
      2018 Research-status Report
  • [Remarks] 平林怜先生が「第23回日本基礎理学療法学会学術大会大会長賞」を受賞

    • URL

      http://www.nuhw-pt.jp/2019/12/2320191209.html

    • Related Report
      2019 Annual Research Report
  • [Remarks] 第30回日本臨床スポーツ医学会学術集会参加報告

    • URL

      http://www.nuhw-pt.jp/2019/11/-3020181116-1117.html

    • Related Report
      2019 Annual Research Report
  • [Remarks] 反復他動運動によって,円滑な関節運動を遂行するために重要な抑制機能である脊髄相反性抑制が増強する!!

    • URL

      http://www.nuhw-pt.jp/2019/11/-20191103.html

    • Related Report
      2019 Annual Research Report
  • [Remarks] 同時収縮中の脊髄相反性抑制の機能は拮抗筋同士の筋活動比に依存することを解明‼

    • URL

      http://www.nuhw-pt.jp/2019/03/2019316.html

    • Related Report
      2019 Annual Research Report
  • [Remarks] 同時収縮とIa相反抑制との関係を解明!!

    • URL

      http://www.nuhw-pt.jp/2018/12/-ia20181213.html

    • Related Report
      2019 Annual Research Report

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Published: 2018-04-23   Modified: 2021-02-19  

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