PMID: 9189781Jun 1, 1997Paper

Influence of sodium replacement on fluid ingestion following exercise-induced dehydration

International Journal of Sport Nutrition
R D WempleG W Mack

Abstract

This study investigated the hypothesis that addition of Na+ to a rehydration beverage would stimulate drinking and augment restoration of body water in individuals dehydrated during 90 min of continuous treadmill exercise in the heat. Following a 3.0 +/- 0.2% decrease in body weight (BW), 6 subjects sat in a thermoneutral environment for 30 min to allow body fluid compartments to stabilize. Over the next 3 hr, subjects rehydrated ad libitum using either flavored/artificially sweetened water (H2O-R) or a flavored, 6% sucrose drink containing either 25 (LNa(+)-R) or 50 (HNa(+)-R) mmol/L NaCl. Results demonstrated that rapid removal of the osmotic stimulus, during H2O-R, and the volume-dependent dipsogenic stimuli, during HNa(+)-R, are important factors in limiting fluid intake during rehydration, compared to LNa(+)-R. It was also found that the pattern of fluid replacement and restoration of fluid balance following dehydration is influenced by the dehydration protocol used to induce the loss in total body water and the sodium content of the rehydration beverage.

Citations

May 24, 2005·Current Sports Medicine Reports·Douglas J CasaWilliam O Roberts
Feb 18, 2006·Journal of Occupational and Environmental Hygiene·Delia Roberts
Jun 15, 2006·Journal of the American College of Nutrition·Rick L Sharp
May 9, 2008·European Journal of Applied Physiology·Stuart J MersonSusan M Shirreffs
Feb 17, 2015·Scandinavian Journal of Medicine & Science in Sports·J Del CosoD Ruiz-Vicente
Feb 20, 2004·Journal of Sports Sciences·Edward F Coyle
Nov 27, 2009·Journal of Applied Physiology·Kristin L OsterbergCraig A Horswill
Oct 9, 2009·Medicine and Science in Sports and Exercise·Neil M JohannsenRick L Sharp
Mar 19, 2008·Applied Physiology, Nutrition, and Metabolism = Physiologie Appliquée, Nutrition Et Métabolisme·Juan Del CosoRicardo Mora-Rodriguez
Jun 29, 2018·Applied Physiology, Nutrition, and Metabolism = Physiologie Appliquée, Nutrition Et Métabolisme·Danielle McCartneyBen Desbrow
Sep 22, 2009·Applied Physiology, Nutrition, and Metabolism = Physiologie Appliquée, Nutrition Et Métabolisme·Gethin H EvansRonald J Maughan
Feb 20, 2004·Journal of Sports Sciences·Susan M ShirreffsSamuel N Cheuvront
Jan 21, 2012·Journal of Strength and Conditioning Research·Clare E Marsh
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Apr 14, 2016·Sports Medicine·Jon K DavisJohn Stofan
May 29, 2010·Journal of Strength and Conditioning Research·Alan C UtterMichael J Landram
Mar 19, 2002·Canadian Journal of Applied Physiology = Revue Canadienne De Physiologie Appliquée·S M Shirreffs

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