Kauppinen K
Arctic Med Res. 1989 Apr;48(2):55-63.
Nine men were subjected to four temperature exposures to detect changes in weight, hemoglobin, hematocrit, and relative volumes of plasma. The exposures were: (A) sauna and head-out ice water immersion; (B) sauna and 15 degrees C shower; (C) sauna and room temperature; (D) head-out ice water immersion and room temperature. All experiments were repeated and ended with recovery at room temperature. The greatest weight loss (mean +/- S.D.) (i.e. sweating) was observed in C, 544 +/- 207 g. The weight losses (mean +/- S.D.) in A and B were equal, 417 +/- 253 g and 437 +/- 221 g. The relative post-exposure plasma volumes decreased 7.2% in A, 8.0% in B, and 5.6% in C; the decrease in D (1.3%) was statistically not significant. Combinations of heat and cold or cool (A and B) reduced the plasma volumes more than mere heat (C), suggesting a disturbance of cutaneous circulation producing transient edema in the skin.
九名男性接受了四次温度暴露试验，以检测体重、血红蛋白、血细胞比容和血浆相对体积的变化。暴露情况如下：(A)桑拿浴和头部露出的冰水浸泡；(B)桑拿浴和15摄氏度淋浴；(C)桑拿浴和室温环境；(D)头部露出的冰水浸泡和室温环境。所有实验均重复进行，并在室温下恢复后结束。观察到最大体重减轻（平均值±标准差）（即出汗量）出现在C组，为544±207克。A组和B组的体重减轻（平均值±标准差）相等，分别为417±253克和437±221克。暴露后血浆相对体积在A组下降了7.2%，B组下降了8.0%，C组下降了5.6%；D组下降了1.3%，在统计学上不显著。热与冷或凉爽环境的组合（A组和B组）比单纯热暴露（C组）使血浆体积减少得更多，这表明皮肤循环受到干扰，导致皮肤出现短暂水肿。
