CHO-FLUID CONSUMPTION DURING A BASKETBALL GAME PRODUCES MARGINAL PERFORMANCE EFFECTS
Odland, M., Rabe, J. B., Elliott, J. J., & Johnson, S. E. (2005). Effect of rehydration and carbohydrate ingestion on physical, skilled, and cognitive performance during basketball. Medicine and Science in Sports and Exercise, 37(5), Supplement abstract 1605.
An exercise protocol designed to mimic the physical demands of a competitive basketball game was performed in two "halves". Ss (M = 6; F = 6) participated in three counterbalanced exercise sessions after consuming a sports drink (6% CHO-electrolytes), a flavored placebo, or no fluid (control condition). Ss consumed 20 milliliters per kilogram of body weight in portions of 2-5 ml/kg before, during, and following the exercise.
Blood glucose was highest in the carbohydrate condition. Heart rate was highest in the control condition. Time to perform a dribble-lay-up task at the end of the exercise was least in the CHO condition and increased through the placebo to the control condition. Blood lactate concentration 15-m sprint, vertical jump, and body temperature were similar between conditions.
Implication. Fluid and carbohydrate consumption during a basketball game will affect performance only marginally.
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