抄録
The effects on the skin of fluctuating heat and constant radiative heat were evaluated by measuring skin blood flow response, skin temperature and thermal sensation votes under conditions of equalized mean radiative heat. The subjects were exposed to radiative heat for 40 minutes while sitting on a chair in front of an electric radiator. Skin temperature, skin blood flow and complaints of thermal discomfort increased significantly under conditions of constant radiative heat. It was observed that vasodilation, which prevents heat buildup at the surface of the skin, is activated by changing radiative heat levels. Variations in radiative heat from an electric radiator would allow the vasodilation process to transfer heat more efficiently to within the body and thus reduce any burning sensation.