We studied the effects of netted shirts upon thermoregulatory responses at warm (34°C) and radiated (electrical heater of 300W) environments. Three females, aged 21-24 yrs, served as subjects. Physiological variables such as rectal and skin temperatures and clothing microclimate (temperatures, humidity) were continuously measured during 30 min rest and 20 min exercise. Major observations were summarized as follows: 1) Back surface temperatures of cotton outer clothing with long sleeves were always greater in netted shirts wearing throughout rest and exercise. 2) Back skin temperatures and clothing microclimate humidity were smaller in netted shirts wearing. 3) Positive heat storage was lower in netted shirts wearing. We discuss that netted shirts wearing is physiologically significant in reducing external heat penetration to human body. These heat resisting mechanisms resemble those of the camel under warm and sun-radiated deserts.

DESCENTE SPORTS SCIENCE Vol.6/THE DESCENTE AND ISHIMOTO MEMORIAL FOUNDATION FOR THE PROMOTION SPORTS SCIENCE