Schutte P C, Rogers G G, van Graan C H, Strydom N B
Aviat Space Environ Med. 1978 May;49(5):710-4.
A new approach to heat acclimatization has been shown to be feasible during laboratory experimentation. Wearing microclimate suits containing dry ice as the coolant, three groups of men were subjected to a moderate work rate in three different environments for 4 h/d for 8 d. Physiological responses on a subsequent heat tolerance test indicate that the group subjected to an environment of 32.0 degrees C W. B. and 33.5 degrees C D.B. were fully heat acclimatized. The 33/35 degrees C group were also well-acclimatized but developed dangerously high body temperatures during the first 2 d. Only partial acclimatization was achieved by the 31/33 degrees C group. The reason why the men acquire heat acclimatization while wearing the microclimate suits in a hot environment is probably that microclimate cooling does not prevent body temperature from rising--it only prevents it from rising excessively. It should be remembered that only one-third of the body is cooled while the rest shows the normal sweating response.
在实验室实验中，一种新的热适应方法已被证明是可行的。三组男性穿着以干冰为冷却剂的微气候服，在三种不同环境中以适度的工作强度每天工作4小时，持续8天。后续耐热性测试中的生理反应表明，处于湿球温度32.0摄氏度和干球温度33.5摄氏度环境中的那组人已完全适应热环境。处于33/35摄氏度环境中的那组人也适应良好，但在头两天体温升得过高，达到了危险程度。处于31/33摄氏度环境中的那组人只实现了部分适应。男性在炎热环境中穿着微气候服时获得热适应的原因可能是，微气候冷却并不能阻止体温上升——只是防止体温过度上升。应该记住的是，只有三分之一的身体得到了冷却，而其余部分则表现出正常的出汗反应。
