Physiological Adaptation of Women to Heat Stress

Details

• Personal Author:
  Drinkwater BL ; Horvath SM
• Description:
  Three studies were conducted to investigate age related changes in thermoregulation observed in previous heat stress studies. Sweating threshold and capacity under thermal stress were studied in ten postmenopausal women and ten younger women. Age effects on responses to exercise under thermal stress were studied in nine postmenopausal women and seven younger women. The effect of endurance training on regional and whole body sweating response was studied in nine women who trained for distance races and nine active but nonrunning women who were matched for age and body surface. The results of the study indicate that not all regional sites to which the sweat capsules were attached reflected the sweating response of the body as a whole. This would indicate that the selection of the site to be monitored for sweating is an important variable in the process. Women runners in this study had twice the sweat rate gain per degree rise in rectal temperature (Tre), than nonrunning subjects, but no difference was noted in the Tre threshold for the onset of sweating. When whole body sweat was used to illustrate the difference in sweating response of the running and nonrunning groups, there was no difference in slope but a marked difference in Tre threshold. The authors conclude that the results of all three studies indicate that healthy older individuals who remain physically active are less likely to have adverse reactions to heat stress than their sedentary counterparts. [Description provided by NIOSH]
• Subjects:
  Age Factors Hot Temperature Occupational Health Safety
• Keywords:
  Age-factors Heat-exposure Heat-tolerance NIOSH-Grant Physical-exercise Physiological-response
• Series:
  Grant Final Reports
• Publisher:
  National Institute for Occupational Safety and Health
• Document Type:
  Text
• Funding:
  Grant
• Genre:
  Final Grant Report
• Place as Subject:
  California ; OSHA Region 9
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  OEP - Office of Extramural Programs
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  1-75
• NIOSHTIC Number:
  nn:00179865
• NTIS Accession Number:
  PB88-221163
• Citation:
  Cincinnati, OH: U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control, National Institute for Occupational Safety and Health, R01-OH-000896, 1982 Oct; :1-75
• Contact Point Address:
  None University of California Inst of Environmental Stress Santa Barbara, Calif 93106
• Federal Fiscal Year:
  1983
• Performing Organization:
  University of California Santa Barbara, Santa Barbara, California
• Peer Reviewed:
  False
• Start Date:
  19790501
• Source Full Name:
  National Institute for Occupational Safety and Health
• End Date:
  19821031
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:e72916713c37bb4867d4f3c59c45c5fb71e35e717ca8f6495be3d32f9d776d4a800f3d940d5f9395375350be91da2a93799f55fb8fb84ec42bf00e0676a64272
• Download URL:
  https://stacks.cdc.gov/view/cdc/217725/cdc_217725_DS1.pdf
• File Type:
  [PDF - 2.10 MB ]