The effects of thermal pretreatment on recovery of low frequency fatigue

Research Project

Project/Area Number	15K01619
Research Category	Grant-in-Aid for Scientific Research (C)
Allocation Type	Multi-year Fund
Section	一般
Research Field	Sports science
Research Institution	Hiroshima University
Principal Investigator	Wada Masanobu 広島大学, 総合科学研究科, 教授 (80220961)
Co-Investigator(Kenkyū-buntansha)	松永智宮崎大学, 教育学部, 教授 (70221588) 矢中規之広島大学, 生物圏科学研究科, 准教授 (70346526)
Co-Investigator(Renkei-kenkyūsha)	KANZAKI KEITA 川崎医療福祉大学, 医療技術学部, 講師 (30637286)
Project Period (FY)	2015-04-01 – 2018-03-31
Project Status	Completed (Fiscal Year 2017)
Budget Amount *help	¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000) Fiscal Year 2017: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000) Fiscal Year 2016: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000) Fiscal Year 2015: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Keywords	筋疲労 / 筋小胞体 / カルシウム調節能 / 温熱処置 / 骨格筋 / 温熱刺激 / スインドファイバー / 低頻度疲労 / ヒートショックプロテイン / スキンドファイバー
Outline of Final Research Achievements	Low frequency fatigue (LFF) is characterized by larger depressions in submaximal force than in maximal force. The aim of this study was to examine the effects of thermal pretreatment on LFF in rat fast-twitch muscles. The present results reveal that thermal pretreatment can facilitate recovery of LFF, which is mediated via a quick return of calcium release of sarcoplasmic reticulum to resting levels. These findings suggest that thermal pretreatment exerts beneficial effects, such as the restoration of muscle performance after physical activity.