Measurement of work metabolism.
Buskirk-ER; Nicholas-WC; Hodgson-JL
Cincinnati, OH: U.S. Department of Health, Education, and Welfare, Public Health Service, Centers for Disease Control, National Institute for Occupational Safety and Health, DHEW (NIOSH) Publication No. 77-135, 1975 May; :1-36
Nine healthy men of normal weight between the ages of 21 and 56 performed several tasks in three hot but relatively dry environments. The tasks, walking on a treadmill, stepping, arm cranking, arm lifting, shoveling and isometric handgrip, were performed at two intensities in each environment until a steady state rectal temperature was observed. Several equations were developed using heart rate, weight, and minute ventilation to predict metabolic heat generated during work. Eight older men (ages 39 to 53) who were overweight were selected for walking on the treadmill under similar conditions, including a neutral environment. It is found that heat produced during work in hot environments can be estimated from measurement of weight, heart rate, and minute ventilation, but the equations developed for normal individuals should not be used to estimate the heat production of overweight men. (Contract No. 099-72-0070)
NIOSH-Contract; Contract-099-72-0070; Thermal-environment; Physical-exercise; Heat-stress; Metabolism; Respiratory-functions; Cardiovascular-function
NTIS Accession No.
DHEW (NIOSH) Publication No. 77-135; Contract-099-72-0070
National Institute for Occupational Safety and Health
Pennsylvania State University