Effects of solar radiation on endurance exercise capacity in a hot environment

2015 Fiscal Year Final Research Report

• Project/Area Number: 26870759
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Applied health science; Sports science
• Research Institution: Himeji Dokkyo University
• Principal Investigator: OTANI HIDENORI 姫路獨協大学, 医療保健学部, 教授 (00412023)
• Project Period (FY): 2014-04-01 – 2016-03-31
• Keywords: 運動 / 持久性運動能力 / 高温環境 / 輻射熱 / 体温調節 / 深部体温 / 皮膚温

Outline of Final Research Achievements

The present study investigated the effects of variations in solar radiation on endurance exercise capacity in a hot environment (30℃ ambient temperature, 50% relative humidity).
The results of the present study directly demonstrates that endurance exercise capacity in a hot environment falls progressively as solar radiation increases. This early fatigue in the higher solar heat load trials was associated with a higher skin temperature and a narrower core-to-skin temperature gradient rather than an increase in core temperature. These observations suggest that solar radiation is a key consideration for individuals exercising in a hot environment.

Free Research Field

生理学