The purpose of this study was to investigate relation between skin temperatures and plethysmograms, in addition to differencs of skin temperatures between sexes. Subjects consisted of 80 male and 276 female office workers. Thermistors of Bio-electric Thermographic Computor placed on the forehead, right 3rd ventral fingertip and plantar toe in the room, where ambient temperatures were adjusted to approx-imately 23.0°C.
The data indicate that average finger skin temperature of male workers was significantly higher than that of female workers. On the contrary, average toe skin temperature was 25.0°C in the former and 26.0°C in the latter. One explanation stemmed from the fact that young female workers put on their boots outdoor in winter. While, among female workers, the group of Type 1 digital plethysmogram presnted normal skin temperatures of finger and toe as compared to Type V or VI group, which contained a large proportion of those with less than 25.0°C as the finger skin temperture.
Moreover, in screenings of peripheral blood circulation, the standard values are considered to be 27.028.0°C for the female finger skin temperature, and 67°C for the difference between the forehead and the finger skin tempertures.
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