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1 Physiology Branch, Environmental Protection Research Division, Quartermaster Research and Engineering Command, U. S. Army, Quartermaster Research and Engineering Center, Natick, Massachusetts
Six healthy young men were exposed, lightly clothed, to various combinations of wind (<1 and 10 mph), temperature (40° and 50°F) and relative humidity (30 and 100%). Skin and rectal temperatures and oxygen consumption were recorded. The results show that relative humidity had no effect on the physiological responses measured, whereas wind and dry bulb temperature had marked effects. This follows the pattern seen when men were exposed without clothing and indicates that, under chamber conditions, there is little interaction between clothing and humidity that could account for cold-wet chill. The importance of considering radiation in any comparison of cold-wet and cold-dry environments is discussed.
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(With the Technical Assistance of J. A. Vaughan)
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