Rain influences the physiological and metabolic responses to exercise in hot conditions.
Rain influences the physiological and metabolic responses to exercise in hot conditions.
复制标题
雨水会影响炎热条件下运动的生理和代谢反应。
DOI：
10.1080/02640414.2014.977938
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发表时间：
2015
期刊：
影响因子：
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通讯作者：
Matsumoto T.
中科院分区：
文献类型：
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作者：
Ito R;Yamashita N;Suzuki E;Matsumoto T.
户外运动经常在雨天进行。然而，在炎热的条件下，雨水对人体生理反应的降温效应尚未得到系统的研究。本研究使用能够精确模拟炎热多雨条件的气候室确定生理和代谢反应。11名健康男性在环境温度为33°C、有（RAIN）或无（CON）降水量为30 mm · h− 1、逆风等于跑步速度3.15 ± 0.19 m · s−1的条件下，在跑步机上以70%VO2max的强度跑步30 min。测量食管温度、平均皮肤温度、心率、主观用力评分、血液参数、呼气量和出汗量。RAIN组食管温度和平均皮肤温度在5 ~ 30 min显著低于CON组，心率在20 ~ 30 min显著低于CON组（均P< 0.05）。与CON相比，RAIN组血浆乳酸和肾上腺素浓度（30 min）和出汗量显著降低（P< 0.05）。雨似乎会影响高温下运动的生理和代谢反应，从而可能减少热诱导的应变。
Outdoor exercise often proceeds in rainy conditions. However, the cooling effects of rain on human physiological responses have not been systematically studied in hot conditions. The present study determined physiological and metabolic responses using a climatic chamber that can precisely simulate hot, rainy conditions. Eleven healthy men ran on a treadmill at an intensity of 70% VO2maxfor 30 min in the climatic chamber at an ambient temperature of 33°C in the presence (RAIN) or absence (CON) of 30 mm · h−1of precipitation and a headwind equal to the running velocity of 3.15 ± 0.19 m · s−1. Oesophageal temperature, mean skin temperature, heart rate, rating of perceived exertion, blood parameters, volume of expired air and sweat loss were measured. Oesophageal and mean skin temperatures were significantly lower from 5 to 30 min, and heart rate was significantly lower from 20 to 30 min in RAIN than in CON (P< 0.05 for all). Plasma lactate and epinephrine concentrations (30 min) and sweat loss were significantly lower (P< 0.05) in RAIN compared with CON. Rain appears to influence physiological and metabolic responses to exercise in heat such that heat-induced strain might be reduced.