Accession Number : AD0263263

Title :   THE EFFECT OF HEAT ACCLIMATIZATION ON ARTIFICIAL AND NATURAL COLD ACCLIMATIZATION IN MAN

Corporate Author : ARMY MEDICAL RESEARCH LAB FORT KNOX KY

Personal Author(s) : DAVIS,T.R.A.

Report Date : 25 AUG 1961

Pagination or Media Count : 7

Abstract : The seasonal changes in oxygen consumption, rectal temperature, and skin temperature in response to a one hour nude exposure to 14.1 degrees C were measured once monthly in six subjects between October and February. Shivering decreased as a result of the seasonal and chamber cold exposure. Cold-elevated oxygen consumption also decreased in both groups but never reached basal values remaining at values 30 to 40% above basal. Skin temperature in the seasonal group exhibited no change while a small but significant fall in the skin temperature occurred in the chamber group. Although no rectal temperature change was demonstrated in the seasonal group, there was a significant fall in the rectal temperature in the chamber group. Since previous studies have demonstrated the lack of influence of cold exposure on heat acclimatization, it is concluded that heat and cold acclimatization are not mutually exclusive and can exist simultaneously in man. (Author)

Descriptors :   *EXPOSURE(PHYSIOLOGY), *HEAT TOLERANCE, BODY TEMPERATURE, CLIMATE, HUMANS, PHYSIOLOGY

Distribution Statement : APPROVED FOR PUBLIC RELEASE