Experimental Research on Human Metabolism in Hot Environment

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In this study, the body metabolic rate of 10 volunteers performing light, medium and heavy physical labor was examined under different climatic conditions in a chamber. The climatic conditions referred to one group of comfort environment (25°C dry bulb temperature and 50% relative humidity) and three groups of thermal environment (30°C, 35°C, 40°Cdry bulb temperature and 90% relative humidity). The results reveal that for the same labor intensity, the human metabolic rate increases with the rise of environment temperature in the scope of 30~40 °C, 90%RH. The impact of environment temperature on metabolic rate increases with the rise of labor intensity. In addition, the classification of physical labor intensity upgrades when the environment temperature exceeds a certain threshold

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241-244

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November 2012

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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