Determinants of the prescriptive zone of industrial workers.

Details

• Personal Author:
  Dobos FN ; Jensen R ; Kuhlemeier KV ; Miller JM
• Description:
  The prescriptive zone is the range of climates in which man's body temperature is independent of climatic conditions. The environmental temperatures which define the upper limit of the prescriptive zone (ULPZ) at different work rates were determined in 46 clothed, healthy, male industrial workers; some of the men were job acclimated to heat and some were not. They performed a total of 653 work bouts of low, medium, or high intensity in environments ranging from 11 to 35 degrees centigrade corrected effective temperature (CET) (8-37 degrees centigrade wet bulb globe temperature). Heart rates (HR) and rectal temperatures (Tre) were measured after 1 hour of work. The ULPZ was calculated from Tre data. HR's showed a similar pattern of response as Tre except that the inflection point corresponding to the ULPZ occurred at different environmental temperatures at most of the experiment conditions. About one third of the work bouts were performed in the summer months and the remainder in the winter. The ULPZ decreased with increasing work rates. At high, but not low, work rates, men who were exposed to heat in the performance of their jobs were more heat tolerant than men who were not heat acclimatized. Both groups were found to be more heat tolerant in the summer months than in the winter. (Contract No. 099-72-0045) [Description provided by NIOSH]
• Subjects:
  Body Temperature Cardiovascular System Environment Hot Temperature Occupational Health Safety Workload
• Keywords:
  Acclimatization Author Keywords: Body Temperature Body-temperature Cardiovascular-system Climate Contract-099-72-0045 Exercise Heat-tolerance Heat Stress NIOSH-Contract Physiological-effects Pulse Rate Season Work Workloads

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• ISSN:
  0161-7567
• Document Type:
  Text
• Funding:
  Contract
• Genre:
  Journal Article
• Place as Subject:
  Alabama ; Ohio ; OSHA Region 4 ; OSHA Region 5
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  DBBS - Division of Biomedical and Behavioral Sciences
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  347-351
• Volume:
  43
• Issue:
  2
• NIOSHTIC Number:
  nn:00073167
• Citation:
  J Appl Physiol: Respir Environ Exercise Physiol 1977 Aug; 43(2):347-351
• Federal Fiscal Year:
  1977
• Peer Reviewed:
  True
• Source Full Name:
  Journal of Applied Physiology: Respiratory, Environmental and Exercise Physiology
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:aa3a831d74df930cf62c0759c2b20aab3b19ff48d6d7fa8483ea30cf0da3ed2ea1c07a7769a5a3dc189dcb19f241cd3e2b250523ba8811a6214d703c2c44873c
• Download URL:
  https://stacks.cdc.gov/view/cdc/184203/cdc_184203_DS1.pdf
• File Type:
  [PDF - 1.35 MB ]