Accession Number : AD0677386

Title :   PHYSIOLOGICAL RESPONSES TO A CHANGING THERMAL LOAD,

Corporate Author : NATIONAL CENTER FOR URBAN AND INDUSTRIAL HEALTH WASHINGTON D C OCCUPATIONAL HEALTH PROGRAM

Personal Author(s) : Henschel,A. ; Humphreys,C. ; Doyle,T. ; Margolies,L. ; Carlson,W.

Report Date : SEP 1968

Pagination or Media Count : 46

Abstract : Two series of experiments were conducted. In series 1 the work load (metabolic heat production) was constant while the environmental heat load was increased stepwise at 45-minute intervals from comfort conditions to severe heat conditions. In series 2, the environmental heat load was constant while the metabolic heat load was progressively increased during the 45-minute intervals from light to moderate work levels. Comparative data were obtained from these experiments on the physiological responses to a changing environmental heat load and to a changing metabolic heat load which permitted an evaluation of differences in intra- and inter-individual responses to heat and the resulting physiological strain. (Author)

Descriptors :   (*RESPONSE(BIOLOGY), THERMAL STRESSES), TOLERANCES(PHYSIOLOGY), TEMPERATURE CONTROL, PERFORMANCE(HUMAN), EXERCISE(PHYSIOLOGY), TEST METHODS, BODY TEMPERATURE, SKIN(ANATOMY), TEMPERATURE, PULSE RATE, METABOLISM, LABOR, OXYGEN CONSUMPTION, HUMIDITY, INSTRUMENTATION

Subject Categories : Anatomy and Physiology
      Stress Physiology
      Thermodynamics

Distribution Statement : APPROVED FOR PUBLIC RELEASE