Hydration recommendations depending on the menstrual cycle phase during hiking

2016 Fiscal Year Final Research Report

• Project/Area Number: 26870771
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Applied health science; Sports science
• Research Institution: Yasuda Women's University
• Principal Investigator: Nose Yuka 安田女子大学, 家政学部, 講師 (60634194)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: 月経周期 / 尿中アルドステロン / 体液調節

Outline of Final Research Achievements

The purpose of this study was to obtain basic data on hydration needs for future proposal of hydration recommendations, depending on the menstrual cycle phase during hiking. We investigated body fluid regulation and physiological response changes in females currently on their menstrual cycle while they were engaged in a walking activity. In the luteal phase, there was an increased regulation of body fluid attributable to elevated aldosterone secretion, and there was a rise of body temperature, likely related to an increase in heart rate. In the luteal phase, cardiovascular load may increase, as a result of fluid shifts and heart rate changes. These results suggest the need to consider hydration to maintain fluid balance while hiking during the menstrual cycle.

Free Research Field

運動生理学　健康教育学