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Assessment of deep body temperatures of workers in hot jobs.

Authors
Kuhlemeier-KV; Miller-JM; Dukes-DoBos-FN; Jensen-RC
Source
NIOSH 1976 Aug; :1-52
Link
NIOSHTIC No.
00059652
Abstract
The extent to which heat tolerance is affected by residence in a semitropical climate, season of the year, and job heat exposure, is studied in two groups of subjects: those exposed to heat in their jobs, and those working in neutral temperature jobs. Each group is tested in summer and winter. Each test involves one hour of exercise on a treadmill in a climatic chamber. Subjects are exposed to several levels of heat as measured by the following four heat indices: corrected effective temperature, wet bulb globe temperature, predicted four hour sweat rate, and the Belding-Hatch heat stress index. Results indicate that season, job heat exposure, and clothing can influence heat tolerance more than climate of residence. Subjects from both industry groups are more heat tolerant during the summer than during winter. Workers occupationally heat exposed are more heat tolerant than nonheat exposed group during heavy exercise, but not during light exercise.
Keywords
NIOSH-Contract; Contract-099-72-0045; Physical-exercise; Physiological-response; Environment; Heat-stress; Body-temperature; Hot-environments; Heat-regulation; Climatic-changes; Thermal-environment; Acclimatization; Adaptation
Publication Date
19760801
Document Type
Numbered Publication
Funding Type
Contract
Fiscal Year
1976
NTIS Accession No.
PB-274705
NTIS Price
A05
Identifying No.
(NIOSH) 77-110; Contract-099-72-0045
NIOSH Division
DBBS
Source Name
National Institute for Occupational Safety and Health
State
OH
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