Cutaneous Warm and Cool Sensation Thresholds and the Inter-threshold Zone in Malaysian and Japanese Males.
Cutaneous Warm and Cool Sensation Thresholds and the Inter-threshold Zone in Malaysian and Japanese Males.
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DOI:
10.1016/j.jtherbio.2009.11.002
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发表时间:
2010-02
影响因子:
2.7
通讯作者:
Joo-Young Lee;Mohamed Saat;Chin-Mei Chou;N. Hashiguchi;Titis Wijayanto;Hitoshi Wakabayashi;Y. Tochihara
中科院分区:
文献类型:
--
作者:
Joo-Young Lee;Mohamed Saat;Chin-Mei Chou;N. Hashiguchi;Titis Wijayanto;Hitoshi Wakabayashi;Y. Tochihara
The purpose of this study was to investigate ethnic differences in cutaneous thermal sensation thresholds and the inter-threshold sensory zone between tropical (Malaysians) and temperate natives (Japanese). The results showed that (1) Malaysian males perceived warmth on the forehead at a higher skin temperature (Tsk) than Japanese males (p<0.05), whereas cool sensations on the hand and foot were perceived at a lower Tskin Malaysians (p<0.05); (2) Overall, the sensitivity to detect warmth was greater in Japanese than in Malaysian males; (3) The most thermally sensitive body region of Japanese was the forehead for both warming and cooling, while the regional thermal sensitivity of Malaysians had a smaller differential than that of Japanese; (4) The ethnic difference in the inter-threshold sensory zone was particularly noticeable on the forehead (1.9±1.2C for Japanese, 3.2±1.6°C for Malaysians, p<0.05). In conclusion, tropical natives had a tendency to perceive warmth at a higher Tskand slower at an identical speed of warming, and had a wider range of the inter-threshold sensory zone than temperate natives.