Prediction of Heat Strain, Revisited 1979-1980,
Abstract
The original 1972 criteria for a Recommended Standard 'Occupational Exposure to Hot Environments' are reviewed. The use of two air motion levels for WBGT is questioned and WGT is suggested as a simpler index for routine work site assessment. The use of body core temperature as a basis for recommendation is questioned (unresponsive and unmeasurable) and heart rate based criteria are suggested. Differences in WBGT criteria based on gender, and emphasis placed on age are questioned; it is suggested that individual fitness, genetically based work capacity, and state of acclimatization are far more relevant although age and sex trends exist. Acclimatization and hydration recommendations are supported and amplified, but the need for a 4-day reacclimatization after a 9-day break may require further investigation. The emphasis on salt supplementation is seriously challenged. Finally, guidance for work in heat involving wear of protective clothing is suggested. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 11, 1979
- Accession Number
- ADA075003
Entities
People
- Ralph F. Goldman
Organizations
- United States Army Research Institute of Environmental Medicine