2012 Fiscal Year Final Research Report
Studies on changes in human heat adaptability in an era of global warming and widespread use of artificial environments
| Project/Area Number |
21247040
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| Research Category |
Grant-in-Aid for Scientific Research (A)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Applied anthropology
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| Research Institution | Kyushu University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
INOUE Yoshimitsu 大阪国際大学, 人間科学部, 教授 (70144566)
OHNAKA Tadakatsu 福岡女子大学, 人間環境学, 教授 (20112716)
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| Project Period (FY) |
2009 – 2012
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| Keywords | ストレス / 下腿温浴 / 人工環境 / 運動 / 暑熱適応 |
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| Research Abstract |
For the coherent understanding of heat acclimatization in tropical natives, we compared ethnic differences between tropical and temperate natives during resting, passive and active heating conditions. Experimental protocols included: (1) a resting condition (an air temperature of 28℃ with 50% RH), (2) a passive heating condition (28℃ with 50% RH; leg immersion in a hot tub at a water temperature of 42℃), and (3) an active heating condition (32℃ with 70% RH; a bicycle exercise). Morphologically and physically matched tropical natives (ten Malaysian males, MY) and temperate natives (ten Japanese males, JP) participated in all three trials. The results saw that: tropical natives had a higher resting rectal temperature and lower hand and foot temperatures at rest, smaller rise of rectal temperature and greater temperature rise in bodily extremities, and a lower sensation of thirst during passive and active heating than the matched temperate natives.It is suggested that tropical natives’ homeostasis during heating is effectively controlled with the improved stability in internal body temperature and the increased capability of vascular circulation in extremities, with a lower thirst sensation.
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Research Products
(30 results)
