Thermoregulatory responses of prepubertal boys to heat and cold in relation to physical training.
Thermoregulatory responses of prepubertal boys to heat and cold in relation to physical training.
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青春期前男孩对热和冷的体温调节反应与体育训练的关系。
DOI：
10.11183/jhe1972.9.69
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发表时间：
1980
期刊：
影响因子：
--
通讯作者：
S. Hori
中科院分区：
文献类型：
--
作者：
T. Araki;J. Tsujita;K. Matsushita;S. Hori
为了研究体能训练对青春期前男孩体温调节反应的影响，我们在夏季进行了三个系列的实验。对所有穿着游泳裤的受试者，在炎热的气候下进行42摄氏度的足浴进行热应激，并在20摄氏度和60%相对湿度的环境中进行冷应激。体育训练提高了工作表现，而对直肠和平均皮肤温度没有显著影响。测定交替暴露于30分钟高温和30分钟低温环境2小时，分别暴露于60分钟高温和60分钟低温环境2小时的儿童代谢率。暴露在冷热环境下，儿童的平均皮肤温度分别升高和降低得更多，但代谢率的增加不如成人显著。据推测，与成人相比，儿童的体温调节对体育训练的反应可能不那么明显，训练对儿童的影响降低可能源于未分化的体温调节系统。
In an attempt to examine the effect of physical training on thermoregulatory responses in prepubertal boys, three series of experiments were performed, in summer. To all the subjects with swimming pants a heat stress was given through a foot bath of 42 degrees C in a hot climate, and a cold stress through exposure to an atmosphere at 20 degrees C Ta and 60% RH. Physical training increased work performance, whereas no significant effects were observed on rectal and mean skin temperatures. Metabolic rate was measured of children exposed alternately to 30-min heat and 30-min cold for 2 hr, and exposed to 60-min heat and 60-min cold separately, respectively. The mean skin temperature increased and decreased more on exposure to heat and cold, respectively, but the metabolic rate increased less remarkably in the children than in the adults. It was postulated thermoregulation might respond less distinctly to physical training in the children than in the adults, and that the decreased effect of training on the children might originate from an undifferentiated thermoregulatory system.