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Zero-calorie Aqua-Lyte hydrates as well as leading sports drink
Date:5/30/2008

Methods

A prospective, randomized, open-label, comparator, crossover trial involving 10 healthy females (ages 18-45 inclusive) with a history of at least 6 months exercise experience. At each of two testing visits, separated by 3 days, subjects walked on a treadmill for 60 minutes at 3.5 mph and a 5% grade in hot, humid conditions (91 104F, 40 56% relative humidity) designed with the intent to induce a 2 3 % reduction in body weight (due to sweat losses). Subjects then consumed 2.5 cups of Aqua-Lyte or the comparison beverage for each pound of body weight lost during the treadmill exercise. The order in which subjects received each beverage was determined by a randomized product-visit sequence assignment. Several measures of hydration (serum osmolality, hematocrit, serum sodium, serum potassium, urine specific gravity and body weight) were measured before and immediately after exercise, immediately after beverage consumption and at 30, 60, 90 and 120 minutes after beverage consumption. At the same time periods, subjects recorded both their thirst and taste assessment of the product using a 10-point Likert scale.

Results

There were no statistically significant differences in any measure of hydration. Subjective comments regarding taste and comfort favored Aqua-Lyte over the other sports drink.

Conclusions

Among active women, Aqua-Lyte a zero-calorie water beverage rehydrates after exercise as well as a leading, sugar-containing hydration beverage.


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Contact: Jeff Nedelman
nedelman@verizon.net
703-628-6011
Strategic Communications
Source:Eurekalert

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