Influence of cold-induced diuresis on endurance exercise performance and its countermeasures

2014 Fiscal Year Final Research Report

• Project/Area Number: 25750332
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Sports science
• Research Institution: Osaka City University
• Principal Investigator: IMAI Daiki 大阪市立大学, 都市健康・スポーツ研究センター, 講師 (40614483)
• Project Period (FY): 2013-04-01 – 2015-03-31
• Keywords: 寒冷利尿 / 脱水 / 持久的運動

Outline of Final Research Achievements

This study investigated the effects of cold diuresis on endurance exercise performance. Cold-induced diuresis occurred by lowered skin temperature due to cold exposure and decreased plasma volume. Plasma lactate concentration before and during exercise increased and lactate threshold declined. As a result, exercise duration reduced in lowered skin temperature compared with normothermia. Therefore we conclude that when we do endurance exercise in cold environment, we should take countermeasures to maintain a steady level of skin temperature.

Free Research Field

環境生理学