[Physiological effects of cabin temperature decrease on human].
To study effects of cabin temperature on human body, changes in rectal temperature, local skin temperature, local skin heat fluxes and skin infrared thermogram were observed in 5 male subjects dressed in different thermal insulation clothings under 20 degrees C, 15 degrees C and 10 degrees C cabin temperatures. The results showed that, average skin temperature and tip temperature obviously dropped, and skin heat fluxes increased with falling of cabin temperature, and changes of local skin infrared thermogram were significant. Subjective feeling were comfortable and cool at cabin temperature of 20 degrees C and 15 degrees C respectively. While subjective feeling was cold and there was a thermal debt of body 144 kJ/m2 at 10 degrees C which indicated that it was slightly cold but tolerable. The results may be valuable in determining the lowest tolerable limit of cabin temperature.
Chang
S
S
Institute of Space Medico-Engineering, Beijing, China.
Cui
D
D
Wu
J
J
Qiu
M
M
Yu
X
X
D000064:Acclimatization; D001831:Body Temperature / Q000502:physiology*; D003080:Cold Temperature; D004780:Environment, Controlled; D006801:Humans; D008297:Male; D011481:Protective Clothing; D012881:Skin Temperature / Q000502:physiology*; D013696:Temperature; D013817:Thermography