Push it to the Limit (IMAGE) Hiroshima University Caption Hasegawa and Yudai Chaen (lead author of the paper) measure the heart rate, sweat rate, muscle activity and temperature of the athlete while exercising in a hot and humid environment (35°C at 50% humidity). Credit Hiroshima University Usage Restrictions Can only be used with attribution to Hiroshima University License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.