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Document ID (ISN)108772
CIS number 08-1422
ISSN - Serial title 0169-8141 - International Journal of Industrial Ergonomics
Year 2008
Convention or series no.
Author(s) Ashley C.D., Luecke C.L., Schwartz S.S., Islam M.Z., Bernard T.E.
Title Heat strain at the critical WBGT and the effects of gender, clothing and metabolic rate
Bibliographic information July 2008, Vol.38, No.7-8, p.640-644. Illus. 25 ref.
Abstract Twenty nine participants (20 men and 9 women) walked on a treadmill at a moderate metabolic rate, wearing five different clothing ensembles. Furthermore, a subset of 15 participants (11 men and 4 women) completed trials for all ensembles at low and high metabolic rates, using a progressive heat stress protocol. The critical WBGT (WBGTcrit) was defined as being the WBGT index 5min prior to a loss of thermal equilibrium and represents the upper limit of thermoregulatory control. As expected, there was an ensemble effect and metabolic rate effect for WBGTcrit. The metabolic rate also had significant effects on heat strain. After adjustment, there was no gender effect for WBGTcrit or skin temperature. There were, however, significant gender effects for heart rate, core temperature and physiological strain index. Other findings are discussed.
Descriptors (primary) regulation of body temperature; sex-linked differences; work clothing; heat load
Descriptors (secondary) body-core temperature; skin temperature; pulse rate; WBGT index; energy metabolism
Document type D - Periodical articles
Country / State or ProvinceUSA
Subject(s) Heating, ventilation and climate
Broad subject area(s) Physiology, ergonomics
Physical hazards
Browse category(ies) Heat and cold
Protective clothing