• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Utilization of muscle fatigue to consolidate motor skill proficiency and the neurophysiology significance of muscle fatigue on cerebral cortex

Research Project

Project/Area Number 26282168
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypePartial Multi-year Fund
Section一般
Research Field Developmental mechanisms and the body works
Research InstitutionNiigata University of Health and Welfare

Principal Investigator

MARUYAMA ATSUO  新潟医療福祉大学, 健康科学部, 教授 (80117548)

Co-Investigator(Kenkyū-buntansha) 山代 幸哉  新潟医療福祉大学, 健康科学部, 講師 (20570782)
塗木 淳夫  鹿児島大学, 工学部, 准教授 (50336319)
佐藤 大輔  新潟医療福祉大学, 健康科学部, 講師 (60544393)
Co-Investigator(Renkei-kenkyūsha) HAMADA Masashi  東京大学, 医学部・歯学部附属病院, 助教 (40708054)
Project Period (FY) 2014-04-01 – 2017-03-31
Project Status Completed (Fiscal Year 2016)
Budget Amount *help
¥16,380,000 (Direct Cost: ¥12,600,000、Indirect Cost: ¥3,780,000)
Fiscal Year 2016: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2015: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2014: ¥10,660,000 (Direct Cost: ¥8,200,000、Indirect Cost: ¥2,460,000)
Keywords筋疲労 / 運動野皮質内抑制低下 / 神経ネットワーク / 適応的運動学習 / 連続的運動学習 / 至適筋疲労 / 技術習熟神経強化 / SICI低下 / 筋力調整誤差 / タイピング成績 / 適応的学習 / 連続的学習 / 高次運動野‐一次運動野 / 筋疲労定量化 / 運動学習 / 補足運動野 / 後部頭頂葉皮質 / 一次運動野 / タイピング学習 / 背側運動野
Outline of Final Research Achievements

We aimed to determine the effect of muscle fatigue on excitability level of each neural network between PMd, SMA, PPC and M1 connections and to quantify muscle fatigue levels to consolidate motor skill proficiency. We examined how muscle fatigue influences the neural network between them by TMS methods. Our results showed that muscle fatigue decreased the excitabilities of PMd- and SMA-M1 inhibitory connections and SICI in the motor cortex at the same time but did not change the excitability of PPC-M1 connection. We identified “optimal” muscle fatigue by showing the decreased SICI after some tasks of %MVC and contraction duration. We also examined whether the muscle fatigue could improve errors of muscle strength control in adaptive learning and typing speed in sequential learning. The results showed that muscle fatigue improved performance of both motor learning types. It is likely that optimal muscle fatigue consolidates motor skill proficiency in motor learning.

Report

(4 results)
  • 2016 Annual Research Report   Final Research Report ( PDF )
  • 2015 Annual Research Report
  • 2014 Annual Research Report
  • Research Products

    (3 results)

All 2016 2015 Other

All Presentation (2 results) (of which Invited: 1 results) Remarks (1 results)

  • [Presentation] 運動学習強化に役立つ筋疲労の活用とその神経生理学的意義---二連発経頭蓋磁気刺激法の基礎と応用を含めて---2016

    • Author(s)
      丸山敦夫
    • Organizer
      運動生理学会
    • Place of Presentation
      熊本大学
    • Year and Date
      2016-07-23
    • Related Report
      2016 Annual Research Report
    • Invited
  • [Presentation] 両手筋疲労か補足運動野- 一次運動野連結に及ほす影響2015

    • Author(s)
      丸山敦夫, 佐藤大輔, 山代幸哉, 大野果穂, 倉部勇哉, 大西秀明, 塗木淳夫
    • Organizer
      第45回日本臨床神経生理学会
    • Place of Presentation
      大阪市
    • Year and Date
      2015-11-05
    • Related Report
      2015 Annual Research Report
  • [Remarks] 運動機能医科学研究所

    • URL

      http://www.ihmms.jp/

    • Related Report
      2015 Annual Research Report

URL: 

Published: 2014-04-04   Modified: 2018-03-22  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi