Acceptability and Effect of Carbohydrate-Electrolyte Solutions on ElectrolyteHomeostasis during Field Training

摘要

Two lemon-lime flavored 2.5% carbohydrate-electrolyte solution (CE1 supplementedwith Na+, K+, and Mg+; and CE2 supplemented with NA+) were compared to plain water (water) and lemon-line flavored water placebo (placebo) to evaluate their acceptability and consumption during 8 days of field training in hot weather. Acceptability ratings and consumption of CE2 and the flavored water placebo were similar and greater, respectively, than those for CE1. Average Na+ and K+ intakes, and serum electrolytes levels, were not affected during the 8-day trial. If food intake is adequate, consumption of carbohydrate-electrolyte solutions is apparently unnecessary to maintain electrolyte homeostasis.