Heat strain models applicable for protective clothing systems: comparison of core temperature response
| Autor: | W R Withey, Richard R. Gonzalez, Kent B. Pandolf, S. K. Chang, Tom M. McLellan |
|---|---|
| Rok vydání: | 1997 |
| Předmět: |
Adult
Male Hot Temperature Materials science Strain (chemistry) Body Surface Area Physiology business.industry Acclimatization Body Weight Calorimetry Core temperature Clothing Models Biological Body Temperature Oxygen Consumption Protective Clothing Heat acclimation Physiology (medical) Heat transfer Exercise Test Humans Composite material business Body Temperature Regulation |
| Zdroj: | Journal of Applied Physiology. 83:1017-1032 |
| ISSN: | 1522-1601 8750-7587 |
| DOI: | 10.1152/jappl.1997.83.3.1017 |
| Popis: | Gonzalez, R. R., T. M. McLellan, W. R. Withey, S. K. Chang, and K. B. Pandolf. Heat strain models applicable for protective clothing systems: comparison of core temperature response. J. Appl. Physiol. 83(3): 1017–1032, 1997.—Core temperature (Tc) output comparisons were analyzed from thermal models applicable to persons wearing protective clothing. The two models evaluated were the United States (US) Army Research Institute of Environmental Medicine (USARIEM) heat strain experimental model and the United Kingdom (UK) Loughborough (LUT25) model. Data were derived from collaborative heat-acclimation studies conducted by three organizations and included an intermittent-work protocol (Canada) and a continuous-exercise/heat stress protocol (UK and US). Volunteers from the US and the UK were exposed to a standard exercise/heat stress protocol (ambient temperature 35°C/50% relative humidity, wind speed 1 m/s, level treadmill speed 1.34 m/s). Canadian Forces volunteers did an intermittent-work protocol (15 min moderate work/15 min rest at ambient temperature of 40°C/30% relative humidity, wind speed ≈0.4 m/s). Each model reliably predicted Tc responses (within the margin of error determined by 1 root mean square deviation) during work in the heat with protective clothing. Models that are analytically similar to the classic Stolwijk-Hardy model serve as robust operational tools for prediction of physiological heat strain when modified to incorporate clothing heat-exchange factors. |
| Databáze: | OpenAIRE |
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