Yamauchi M, Matsumoto T, Ohwatari N, Kosaka M
Department of Health and Physical Education, Faculty of Education, Nagasaki University, Japan.
Pflugers Arch. 1997 Apr;433(6):675-8. doi: 10.1007/s004240050331.
Local sweat rates (Msw) at the chest and thigh and the frequency of sweat expulsions (Fsw) were determined in human subjects with (athletes) or without (non-athletes) long-term physical training during moderate bicycle exercise (80 W for 30 min) at ambient thermoneutrality (23 degrees C) and 60% relative humidity. There was a tendency for Msw to be lower in athletes. The rise of Msw with increasing Fsw was significantly less steep and Fsw was also controlled at a significantly lower rate in athletes than in non-athletes. The start of exercise was followed by a temporary decrease in mean skin temperature (Ts) which was less distinct in athletes. The rise in Ts at the end of exercise was significant in athletes (0.80 +/- 0.26 degree C) but not in non-athletes (0.26 +/- 0.33 degree C). The results indicate that long-term physical training leads to improved circulatory heat transfer to the skin and to a more graded nervous control of sweat expulsion and, further, tends to reduce the rate of sweating.
在环境温度适中（23摄氏度）、相对湿度60%的条件下，对有长期体育训练经历的人群（运动员）和无长期体育训练经历的人群（非运动员）进行中度自行车运动（80瓦，持续30分钟）时，测定其胸部和大腿的局部出汗率（Msw）以及排汗频率（Fsw）。运动员的Msw有降低的趋势。随着Fsw增加，运动员Msw的上升明显较平缓，且运动员的Fsw控制速率也显著低于非运动员。运动开始后，平均皮肤温度（Ts）会暂时下降，这在运动员中不太明显。运动结束时，运动员的Ts显著上升（0.80±0.26摄氏度），而非运动员则无显著变化（0.26±0.33摄氏度）。结果表明，长期体育训练可改善向皮肤的循环热传递，使排汗的神经控制更加分级，并且还倾向于降低出汗速率。
