Measurements of thermal environment and heart rate of elderly people during sleeping in summer

Abstract

The thermal environment and physiological data of elderly people during sleeping were measured for 8 days in summer. As physiological data, skin temperature of chest and thigh, temperature and relative humidity under clothing at chest and heart rate were measured with portable sensors. Subjects spent as usual, including setting room temperature of their air conditioner. Thermal environment of sleeping environment was about 27.8C in air temperature and 56% in relative humidity. In this paper, the physiological data of an elderly male subject were reported.