Abstract
Twelve young woman subjects rested or exercised in the outdoor environment in the summer season. Rectal temperature, skin temperatures for chest, back, upper-arm, thigh, and leg, and heart rate were continuously measured and thermal and comfort sensations were recorded. Before and after the experiment session the body mass was measured and the mass loss was calculated for the period of rest or exercise. Moreover, air temperature, humidity, air velocity, globe temperature and horizontal solar radiation were measured and, SET^* and WBGT were calculated. The physiological, psychological and environmental results were compared for 4 conditions; solar radiation on the front surface from sun, on the back surface, in the cloudy, or in the shade. Effects of solar radiation were found in the thermal sensation and radiative heat sensation, however, not found in other psychological sensations. Skin temperatures for thigh and leg were influenced by the solar radiation and the MST (mean skin temperature), mass loss and skin wettedness were higher under sunshine than under shade and cloudy.
