Abstract
To make clear the regional differences of cutaneous heat flow in man, we attempted to measure it at 27 points on the body surface area (Fig. 2) in a climatic chamber controlled at ambient temperature of 29°C and relative humidity of 50%. One male (49 years) and two females (24, 25 years) were served as subjects. They wore shorts only. The cutaneous heat flow per square meter had the regional differences, that from forehead showing the highest value, 2-3 times higher than that from the other areas. However, as the proportion of each region to total body surface area is different, the real cutaneous heat flow per region showed different profile from that per square meter. On the other hand, there existed also differences of cutaneous heat flow within head, arm, hand, back, chest, thigh, leg and foot. This means that, if we measure the total cutaneous heat flow of body surface area with one point measurement from each region of head, arm, hand, back, chest, thigh, leg and foot without taking account of these differences, the values might be overestimated or underestimated.
