Interindividual differences in thermal comfort and the responses to skin cooling in young women |
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Authors: | Ayako Yasuoka Hiroko KuboKazuyo Tsuzuki Norio Isoda |
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Affiliation: | a Natural Science and Ecological Awareness, Graduate School of Nara Women's University Kitauoyanishimachi, Nara-shi, Nara 630-8506, Japan b Faculty of Human Life and Environment Nara Women's University, Japan c National Institute of Advanced Industrial Science and Technology, Japan d Nara Women's University, Japan |
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Abstract: | The present study aims to understand the effects of interindividual differences in thermal comfort on the relationship between the preferred temperature and the thermoregulatory responses to ambient cooling. Thirteen young women subjects chose the preferred ambient temperature (preferred Ta) in a climate chamber and were categorized into the H group (preferring ≥29 °C; n=6) and the M group (preferring <29 °C; n=7). The H group preferred warmer sensations than the M group (P<0.05) and the average of preferred Ta was 27.6 °C and 30.2 °C in the M group and H group, respectively. Then all subjects were exposed to temperature variations in the climate chamber. During Ta variations from 33 °C to 25 °C, the H group felt colder than the M group, although no difference was noted in the Tsk (mean skin temperature) and Ts-hand between the 2 groups. From the view of the relationship between the Tsk and thermal sensation, although the thermal sensitivity to the Tsk was almost similar in the H and M groups, the H group might have lower threshold to decreasing Ta than the M group. |
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Keywords: | Thermoregulatory responses Skin temperature Vasoconstriction Thermal sensation Thermal sensitivity Preferred temperature |
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