PMID: 9534077Apr 16, 1998Paper

Consistency in preventing voluntary dehydration in boys who drink a flavored carbohydrate-NaCl beverage during exercise in the heat

International Journal of Sport Nutrition
B WilkO Bar-Or

Abstract

Twelve 10- to 12-year-old healthy boys performed six 70-min intermittent exercise sessions (three 20-min cycling bouts at 50% VO2max with 5 min rest in between) over a 2-week period at 35 +/- 1 degrees C, 50 +/- 5% or 60 +/- 5% relative humidity. Subjects drank grape-flavored solution with 6% carbohydrate (2% glucose, 4% sucrose) and 18.0 mmol.L-1 NaCl ad libitum. Body weight (BW), heart rate, rectal temperature, thirst, and stomach fullness perception were monitored periodically. There were no differences among the six sessions in voluntary drink intake (765-902 g), hydration level (+0.75 to +1.07%BW), sweating rate (245-263 g.m-2.hr-1), and the other physiological and perceptual variables. A positive fluid balance was achieved in 67 out of 72 sessions. Voluntary drink intake of grape-flavored carbohydrate-NaCl beverage was consistently sufficient to prevent dehydration in 10- to 12-year-old boys during repeated exposures of exercise in the heat. This effect is likely to be achieved through a combination of physiological and behavioral mechanisms.

Citations

Dec 6, 2007·Journal of Sports Sciences·Flavia MeyerUNKNOWN International Association of Athletics Federations
Aug 31, 2001·Medicine and Science in Sports and Exercise·W L Kenney, P Chiu
Dec 18, 2010·Applied Physiology, Nutrition, and Metabolism = Physiologie Appliquée, Nutrition Et Métabolisme·Boguslaw WilkOded Bar-Or
Nov 26, 2008·Journal of Athletic Training·Craig A HorswillChris Hannasch
Jan 31, 2009·Journal of Athletic Training·Kristin L OsterbergLindsay B Baker
Sep 8, 2007·European Journal of Applied Physiology·Boguslaw WilkOded Bar-Or
Jun 3, 2009·Journal of Human Nutrition and Dietetics : the Official Journal of the British Dietetic Association·Y Bar-DavidD Pilpel

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