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Effects of commercially formulated water on the hydration status of dehydrated collegiate wrestlers.

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.

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  • Authors+Show Affiliations

    ,

    Department of Health, Leisure, and Exercise Science, Appalachian State University, Boone, North Carolina, USA.

    , ,

    Source

    MeSH

    Analysis of Variance
    Carbohydrates
    Cross-Over Studies
    Dehydration
    Electrolytes
    Fluid Therapy
    Humans
    Male
    Osmolar Concentration
    Plasma Volume
    Specific Gravity
    Treatment Outcome
    Universities
    Urine
    Water
    Water-Electrolyte Balance
    Wrestling
    Young Adult

    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 -