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Appl Physiol Nutr Metab. 2007 Aug;32(4):818-31.

Disturbance of thermal homeostasis following dynamic exercise.

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Laboratory for Human Bioenergetics and Environmental Physiology, Faculty of Health Sciences, School of Human Kinetics, 125 University Ave., Montpetit Hall, University of Ottawa, Ottawa, ON K1N 6N5, Canada.


Recovery from dynamic exercise results in significant perturbations of thermoregulatory control. These perturbations evoke a prolonged elevation in core body temperature and a concomitant decrease in sweating, skin blood flow, and skin temperature to pre-exercise baseline values within the early stages of recovery. Cutaneous vasodilation and sweating are critical responses necessary for effective thermoregulation during heat stress in humans. The ability to modulate the rate of heat loss through adjustments in vasomotor and sudomotor activity is a fundamental mechanism of thermoregulatory homeostasis. There is a growing body of evidence in support of a possible relationship between hemodynamic changes postexercise and heat loss responses. Specifically, nonthermoregulatory factors, such as baroreceptors, associated with hemodynamic changes, influence the regulation of core body temperature during exercise recovery. The following review will examine the etiology of the post-exercise disturbance in thermal homeostasis and evaluate possible thermal and nonthermal factors associated with a prolonged hyperthermic state following exercise.

[Indexed for MEDLINE]

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