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Effects of the Sauna

Effects of the Sauna To the Editor.— In the letter "Effect of Sweating" (1981;246:623), MAJ Ward Dean, MC, USA, claims that the loss of 500 g of sweat in a sauna consumes nearly 300 kcal. I would consider this highly doubtful, since extrapolating these figures would suggest that survival in a hot climate, where several liters of sweat may be lost daily, would require an increased caloric intake for this loss compared with the same daily activities in a more temperate zone, and clearly this does not happen. He also suggests that the regular use of a sauna may be as effective a means of cardiovascular conditioning as regular exercise. Since the improvement in cardiovascular efficiency associated with exercise is due mainly to peripheral (skeletal muscle) rather than myocardial changes, it is difficult to envisage how this can also be achieved by the inactivity of the sauna. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png JAMA American Medical Association

Effects of the Sauna

JAMA , Volume 247 (1) – Jan 1, 1982

Effects of the Sauna

Abstract



To the Editor.—
In the letter "Effect of Sweating" (1981;246:623), MAJ Ward Dean, MC, USA, claims that the loss of 500 g of sweat in a sauna consumes nearly 300 kcal. I would consider this highly doubtful, since extrapolating these figures would suggest that survival in a hot climate, where several liters of sweat may be lost daily, would require an increased caloric intake for this loss compared with the same daily activities in a more temperate zone, and clearly this does...
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Publisher
American Medical Association
Copyright
Copyright © 1982 American Medical Association. All Rights Reserved. Applicable FARS/DFARS Restrictions Apply to Government Use.
ISSN
0098-7484
eISSN
1538-3598
DOI
10.1001/jama.1982.03320260016012
Publisher site
See Article on Publisher Site

Abstract

To the Editor.— In the letter "Effect of Sweating" (1981;246:623), MAJ Ward Dean, MC, USA, claims that the loss of 500 g of sweat in a sauna consumes nearly 300 kcal. I would consider this highly doubtful, since extrapolating these figures would suggest that survival in a hot climate, where several liters of sweat may be lost daily, would require an increased caloric intake for this loss compared with the same daily activities in a more temperate zone, and clearly this does not happen. He also suggests that the regular use of a sauna may be as effective a means of cardiovascular conditioning as regular exercise. Since the improvement in cardiovascular efficiency associated with exercise is due mainly to peripheral (skeletal muscle) rather than myocardial changes, it is difficult to envisage how this can also be achieved by the inactivity of the sauna.

Journal

JAMAAmerican Medical Association

Published: Jan 1, 1982

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