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绪言在高温环境中身体藉蒸发散热,因此体内水分大量丧失。在过去的研究中曾观察到,运动时的体温调节,补给水者比不给水者灵敏,且不受饮水水温的影响,都可抑制运动时体温升高,证明补给水分对体温的调节是有效的。但补给多少水分更为有效尚不清楚。本次研究是从热平衡角度定量地探讨饮水量与体温调节反应的关系。方法健康男性大学生(运动锻练者)3名,在环境温度36℃、相对湿度40％的条件下,于自行车功力计(450kpm/分)上运动1小时,连续测定运动中的氧耗量、直肠温度、皮肤温度及出汗量,饮水温度为1℃、13℃和37℃三种,总饮水量分别为运动时不饮水时的出汗量(定为100％)及其70％和40％,并于运动开始后每10分钟饮水一次。
INTRODUCTION In the high-temperature environment, the body evaporates and dissipates a large amount of water in the body. In the past studies have observed that body temperature adjustment during exercise, water supply were more sensitive than those who do not give water, and are not affected by drinking water temperature, can inhibit the body temperature during exercise to prove that the supply of water on the body temperature regulation is effective of. However, it is unclear how much water to replenish is more effective. This study is to quantitatively explore the relationship between water intake and body temperature regulation response from the perspective of heat balance. Methods Three male college students (sports exercisers) were enrolled in this study. They were exercised for one hour at 450kpm / minute on a bicycle with an ambient temperature of 36 ° C and a relative humidity of 40%. The oxygen consumption during exercise was continuously measured, Rectal temperature, skin temperature and sweating volume, drinking water temperature of 1 ℃, 13 ℃ and 37 ℃, the total amount of water were sweat when drinking water (defined as 100%) and 70% and 40 %, And drinking water every 10 minutes after the start of exercise.