Abstract
In this paper, the comparison of skin temperature response between the palmar and the dorsal surfaces of the distal phalanx of the left middle finger was carried out in order to find a more proper location for the test of estimating vascular reaction to cold water (0°C).
The experiment was made under the room temperature from 20 to 22°C based on 19 male subjects (10 controls and 9 Ekiden, long relay road race, runners) in November in 1969 and February in 1970.
The finger skin temperature during ice-water (°C) was measured by the micropyrometer and the thermopiles made of copper and constantan wires.
The following results are found; Based on the progress of fluctuation curve, the skin temperature rise of vascular reaction to cold was more apparent on the palmar surface than on the dorsal one of the distal phalanx in all subjects (Fig. 4). As for four characteristics (Fig. 6) from the skin temperature response, significant differences are recognized between the mean on both surfaces at 1% or 5% significant levels (Table 1).
It has been found from these results that the response to cold is more sensible at the palmar surface than at the dorsal surface, and that the former was suited for estimating of finger skin temperature.
In a preliminary examination, it was found that the double layers of the adhensive plaster and a piece of foaming styrol might have effect of the the protection against the direct cooling of the thermopile in cold water.
