THE EFFECT OF CLOTHING ON THE ABILITY OF MEN TO WORK IN INTENSE HEAT

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Abstract
The effect of wearing 2 types of single layer cotton clothing on the ability of 10 acclimatized [male][male] to work at the upper limits of heat was evaluated in laboratory studies. The upper limiting wet bulb temperature for successful group performance of 4 hrs. of marching at 3 mph. (250 Cal./hr.) in an environment with D.B. 120[degree]F., was 92[degree]F. for nude men, 90[degree]F. for the herringbone twill clothed and 88[degree]F. for [male][male] wearing an impregnated herringbone twill uniform. The upper limiting wet bulb temp. at a D.B. 93[degree]-95[degree], was 94[degree]F. for nude c? d* and 92[degree]F. for men clothed either in treated or untreated herringbone twill uniforms. Data on the physiologic responses of the [male][male] at these high temps. and humidities are presented.

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