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01-07-2013 | Letter to the Editor

Is urinary specific gravity a useful simple marker of fluid depletion in athletes?

Author: Roy J. Shephard

Published in: European Journal of Applied Physiology | Issue 7/2013

Excerpt

Hamouti et al. (2013) rightly draw attention to the need for a simple field measure of dehydration, an index that can be used by those monitoring athletes who are performing endurance exercise under hot conditions. They also note some of the limitations of drawing inferences from changes in body mass, although they do not discuss the potential complication that up to 2 l of water are liberated during the metabolism of glycogen, and an equal change occurs in the opposite sense as intramuscular glycogen reserves are replenished. …

Hamouti N, Del Coso J, Mora-Rodriguez R (2013) Comparison between blood and urinary fluid balance indices during dehydrating exercise and the subsequent hypohydration when fluid is not restored. Eur J Appl Physiol 113:611–620PubMedCrossRef

Oppliger RA, Magnes SA, Popowski LA (2005) Accuracy of urinary specific gravity and osmolality as indicators of hydration status. Int J Sport Nutr Exerc Metab 15:236–251PubMed

Popowski LA, Oppliger RA, Patrick Lambert G et al (2001) Blood and urinary measures of hydration status during progressive acute dehydration. Med Sci Sports Exerc 33:747–753PubMed

Title: Is urinary specific gravity a useful simple marker of fluid depletion in athletes?
Author: Roy J. Shephard
Publication date: 01-07-2013
Publisher: Springer-Verlag
Published in: European Journal of Applied Physiology / Issue 7/2013
Print ISSN: 1439-6319
Electronic ISSN: 1439-6327
DOI: https://doi.org/10.1007/s00421-013-2662-3

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Is urinary specific gravity a useful simple marker of fluid depletion in athletes?

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