PHYSIOLOGICAL RESPONSE CHANGES OF MEN ATTRIBUTABLE TO BODY ARMOR, SUN, AND WORK IN A NATURAL DESERT ENVIRONMENT (INCLUDING NEGRO-WHITE DIFFERENCES)
QUARTERMASTER RESEARCH AND ENGINEERING COMMAND NATICK MA NATICK United States
Pagination or Media Count:
Sweat production, rectal temperature and pulse rate were measured over a 24-consecutive-day period on 16 men 8 white and 8 negro in both a natural and a modified shaded desert environment. These indices were used to determine the effect of wearing body armor, sun, and exercise, and to compare physiological responses of paired negro-white subjects. When an individual donned body armor, and exercised in a natural hot-dry desert environment, significant increases in sweat production, rectal temperature and pulse rate occurred. When an individual was exposed to the sun, significant increases in sweat production occurred. When an individual exercised, significant increases in sweat production, rectal temperature and pulse rate occurred. Heat tolerance of fully-clothed negro and white individuals was about equal in natural hot-dry surroundings.