Relationship between body cooling and reduction of endurance exercise performance in a hot environment -Focus on respiratory muscle function-

2023 Fiscal Year Final Research Report

• Project/Area Number: 19K24327
• Research Category: Grant-in-Aid for Research Activity Start-up
• Allocation Type: Multi-year Fund
• Review Section: 0909:Sports sciences, physical education, health sciences, and related fields
• Research Institution: Aichi Mizuho College (2023); Kochi National College of Technology (2021-2022); Chukyo University (2019-2020)
• Principal Investigator: Osakabe Jumpei 愛知みずほ大学, 人間科学部, 助教 (70844926)
• Project Period (FY): 2019-08-30 – 2024-03-31
• Keywords: 身体冷却 / 呼吸筋

Outline of Final Research Achievements

It has been suggested that body cooling during endurance exercise in heat may prevent a decline in endurance exercise performance.It has been considered that improved skin temperature and thermal sensation due to body cooling may contribute for preventing a decline in endurance exercise performance.In this study, we focused on respiratory muscle function, then we investigated the relationsip between body cooling and endurance exercise performance and respiratory muscle function.In the results, it is suggested that improve in endurance exercise performance due to body cooling assosiated with respiratory muscle function.However, sample size were insufficient in this　study.Therefore,caution should be exercised in interpreting the results.

Free Research Field

Exercise physiology

Academic Significance and Societal Importance of the Research Achievements

暑熱環境下における運動時の身体冷却は、熱中症予防の観点からだけでなく、運動パフォーマンスの低下を防ぐ観点からも重要である。一方で、身体冷却によって持久的運動パフォーマンスが改善する詳細なメカニズムは不明である。メカニズムの解明は、暑熱環境下における身体冷却の意義を高めるためにも重要であると考えられる。本研究では、サンプル数が少ないものの、身体冷却による持久的運動パフォーマンスの改善に呼吸筋機能が関連している可能性が示唆された。今後、呼吸筋機能を呼吸筋トレーニングで改善することや身体冷却を実施して深部体温をコントロールする有用性について、研究が進んでいくことが期待される。