Body Heat Balance During Interval Exercise in a Cold Environment
نویسندگان
چکیده
منابع مشابه
Heat Balance Regulation during Exercise: Circadianity
Recent reviews of the literature on thermoregulation during exercise including the regulation of thermal sweating have been made by many scientists [see (1) for Jessen's review]. Human body temperature is determined by the balance between heat accumulation, whether generated by physical activity (metabolic heat production) or gained from the environment (environmental heat), and heat dissipatio...
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Certain previous studies suggest, as hypothesized herein, that heat balance (i.e., when heat loss is matched by heat production) is attained before stabilization of body temperatures during cold exposure. This phenomenon is explained through a theoretical analysis of heat distribution in the body applied to an experiment involving cold water immersion. Six healthy and fit men (mean +/- SD of ag...
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Cold water or ice slurry ingestion during exercise seems to be an effective and practical means to improve endurance exercise performance in the heat. However, transient reductions in sweating appear to decrease the potential for evaporative heat loss from the skin by a magnitude that at least negates the additional internal heat loss as a cold ingested fluid warms up to equilibrate with body t...
متن کاملMarginal effects of a large caffeine dose on heat balance during exercise-heat stress.
UNLABELLED The use of caffeine supplements in athletic and military populations has increased in recent years. Excessive caffeine consumption in conjunction with exercise in a hot environment may predispose individuals to heat illness. PURPOSE To examine heat balance induced by a large dose of caffeine during exercise in a hot environment. METHODS Ten men, not heat acclimated and not habitu...
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Objectives Breathing cold air can lead to bronchoconstriction and peripheral vasoconstriction, both of which could impact muscular performance by affecting metabolic demands during exercise. Successful solutions dealing with these physiological changes during exercise in the cold has been lacking; therefore, we investigated the influence of a heat and moisture exchange mask during exercise in t...
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ژورنال
عنوان ژورنال: Prehospital and Disaster Medicine
سال: 2002
ISSN: 1049-023X,1945-1938
DOI: 10.1017/s1049023x00059628