Studies on changes in human heat adaptability in an era of global warming and widespread use of artificial environments

全球变暖和人工环境广泛使用时代人类热适应性变化的研究

• 批准号: 21247040
• 负责人: TOCHIHARA Yutaka
• 金额: $ 29.62万
• 依托单位: Kyushu University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (A)
• 财政年份: 2009
• 资助国家: 日本
• 起止时间: 2009 至 2012
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-21247040/
• 关键词: ストレス; 下腿温浴; 人工環境; 運動; 暑熱適応; 耐暑性; 適応; 体温; 発汗性; 冷暖房; 皮膚温度感受性; 熱帯住民; 上下温度差; 温度感受性; 運動負荷; 発汗量; 血流量; 民族差; 直腸温; 人類学; 生理学; 環境適応能

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.

为了对热带土著人热习服有一个比较清晰的认识，我们比较了热带和温带土著人在休息、被动和主动加热条件下的种族差异。实验方案包括：（1）静止条件（空气温度28℃，相对湿度50%），（2）被动加热条件（28℃，相对湿度50%;腿部浸泡在水温42℃的热水浴缸中），和（3）主动加热条件（32℃，相对湿度70%;自行车运动）。形态和身体相匹配的热带土著人（10名马来西亚男性，MY）和温带土著人（10名日本男性，JP）参加了所有三项试验。结果表明：热带土著人在休息时直肠温度较高，手足温度较低，直肠温度升高较小，四肢温度升高较大，被动和主动加热时的口渴感均低于相应的温带原住民，表明热带原住民在加热过程中的内环境稳定性得到了有效的控制，体内温度的稳定性得到了改善，四肢的血管循环，有较低的口渴感。

项目成果

Comparison of the hydration effect on body fluid regulation during exercise in heat between Malaysian and Japanese males

马来西亚与日本男性高温运动时水合作用对体液调节的影响比较

• 发表时间: 2011
• 作者: Hitoshi Wakabayashi;et al
• 通讯作者: et al

Aging and thermoregulation

衰老和体温调节

• 发表时间: 2013
• 期刊: J Phys Fitness Sports Med
• 作者: Shibasaki M;Okazaki K;Inoue Y
• 通讯作者: Inoue Y

Age-related differences in cutaneous warm sensation thresholds of human males in thermoneutral and cool environments

• DOI: 10.1016/j.jtherbio.2010.11.007
• 发表时间: 2011-03
• 期刊: Journal of Thermal Biology
• 影响因子: 2.7
• 作者: Y. Tochihara;Teruyuki Kumamoto;Joo-Young Lee;N. Hashiguchi

Cutaneous thermal thresholds of tropical indigenes residing in Japan

• DOI: 10.1016/j.jtherbio.2011.08.002
• 发表时间: 2011-10-01
• 期刊: JOURNAL OF THERMAL BIOLOGY
• 影响因子: 2.7
• 作者: Lee, Joo-Young;Bakri, Ilham;Tochihara, Yutaka
• 通讯作者: Tochihara, Yutaka

Physiological parameters relevant to peripheral thermal threshold in Malaysian and Japanese males

马来西亚和日本男性与外周热阈值相关的生理参数

• 发表时间: 2009
• 作者: Doniwa;Y.;Joo-Young Lee
• 通讯作者: Joo-Young Lee