Med Sci Sports Exerc 2021 May 12. Epub 2021 May 12.
Human and Environmental Physiology Research Unit, School of Human Kinetics, University of Ottawa, Ottawa, Canada Departments of Medicine, Cardiac Sciences and Community Health Sciences Faculties of Medicine and Kinesiology, University of Calgary, Canada Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, Canada FAME Laboratory, Department of Exercise Science, University of Thessaly, Greece Faculté des sciences de l'activité physique, Université de Sherbrooke, Sherbrooke, Québec, Canada Hypertension Program, Division of Nephrology, University of Ottawa, Ottawa, Canada.
Purpose: To mitigate rises in core temperature >1°C, the American Conference of Governmental Industrial Hygienists (ACGIH) recommends upper limits for heat stress (Action Limit Values; ALV), defined by wet-bulb globe temperature (WBGT) and a worker's metabolic rate. However, these limits are based on data from young men and are assumed to be suitable for all workers, irrespective of age or health status. We therefore explored the impact of aging, type 2 diabetes (T2D), and hypertension (HTN), on tolerance to prolonged, moderate-intensity work above and below these limits. Read More