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Effects of commercially formulated water on the hydration status of dehydrated collegiate wrestlers.
J Strength Cond Res 2009; 23(8):2210-6JS

Abstract

The objective of this study was to evaluate the effects of three different drinks (commercially formulated water, bottled water, and a carbohydrate-electrolyte beverage) on blood and urinary markers of hydration after acute dehydration in collegiate wrestlers. Twenty-one athletes were recruited to perform a randomized, crossover study comparing the effectiveness of commercially formulated water, carbohydrate-electrolyte (6% or 60 g L(-1)), or regular bottled water (placebo) in promoting rehydration after a 3% reduction in body mass. Urine specific gravity (U(sg)), urine osmolarity (U(osm)), plasma osmolarity (P(osm)), and plasma volume were measured pre- and post-dehydration and at 1 hour after rehydration. Statistical analyses used a 3 (conditions) x 3 (times) repeated measures analysis of variance. Significant (p < 0.01) interactions were found for P(osm), U(osm), and U(sg). P(osm) returned to baseline levels and U(osm) remained in a lower balance after 1 hour of rehydration in the trials of the commercially formulated water and regular bottled water. No significant interactions were found for plasma volume shift. The findings of this study demonstrate that the commercially formulated water was no more effective in promoting rehydration than either a carbohydrate-electrolyte solution or plain water in collegiate wrestlers after a 3% reduction in body mass and a rehydration period of 1 hour when consuming 100% of their body weight loss.

Authors+Show Affiliations

Department of Health, Leisure, and Exercise Science, Appalachian State University, Boone, North Carolina, USA.No affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Comparative Study
Journal Article
Randomized Controlled Trial
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

19826306

Citation

Valiente, J Scott, et al. "Effects of Commercially Formulated Water On the Hydration Status of Dehydrated Collegiate Wrestlers." Journal of Strength and Conditioning Research, vol. 23, no. 8, 2009, pp. 2210-6.
Valiente JS, Utter AC, Quindry JC, et al. Effects of commercially formulated water on the hydration status of dehydrated collegiate wrestlers. J Strength Cond Res. 2009;23(8):2210-6.
Valiente, J. S., Utter, A. C., Quindry, J. C., & Nieman, D. C. (2009). Effects of commercially formulated water on the hydration status of dehydrated collegiate wrestlers. Journal of Strength and Conditioning Research, 23(8), pp. 2210-6. doi:10.1519/JSC.0b013e3181bac56e.
Valiente JS, et al. Effects of Commercially Formulated Water On the Hydration Status of Dehydrated Collegiate Wrestlers. J Strength Cond Res. 2009;23(8):2210-6. PubMed PMID: 19826306.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Effects of commercially formulated water on the hydration status of dehydrated collegiate wrestlers. AU - Valiente,J Scott, AU - Utter,Alan C, AU - Quindry,John C, AU - Nieman,David C, PY - 2009/10/15/entrez PY - 2009/10/15/pubmed PY - 2010/2/26/medline SP - 2210 EP - 6 JF - Journal of strength and conditioning research JO - J Strength Cond Res VL - 23 IS - 8 N2 - The objective of this study was to evaluate the effects of three different drinks (commercially formulated water, bottled water, and a carbohydrate-electrolyte beverage) on blood and urinary markers of hydration after acute dehydration in collegiate wrestlers. Twenty-one athletes were recruited to perform a randomized, crossover study comparing the effectiveness of commercially formulated water, carbohydrate-electrolyte (6% or 60 g L(-1)), or regular bottled water (placebo) in promoting rehydration after a 3% reduction in body mass. Urine specific gravity (U(sg)), urine osmolarity (U(osm)), plasma osmolarity (P(osm)), and plasma volume were measured pre- and post-dehydration and at 1 hour after rehydration. Statistical analyses used a 3 (conditions) x 3 (times) repeated measures analysis of variance. Significant (p < 0.01) interactions were found for P(osm), U(osm), and U(sg). P(osm) returned to baseline levels and U(osm) remained in a lower balance after 1 hour of rehydration in the trials of the commercially formulated water and regular bottled water. No significant interactions were found for plasma volume shift. The findings of this study demonstrate that the commercially formulated water was no more effective in promoting rehydration than either a carbohydrate-electrolyte solution or plain water in collegiate wrestlers after a 3% reduction in body mass and a rehydration period of 1 hour when consuming 100% of their body weight loss. SN - 1533-4287 UR - https://www.unboundmedicine.com/medline/citation/19826306/Effects_of_commercially_formulated_water_on_the_hydration_status_of_dehydrated_collegiate_wrestlers_ L2 - http://Insights.ovid.com/pubmed?pmid=19826306 DB - PRIME DP - Unbound Medicine ER -