CHO SUPPLEMENTATION PRESERVES PERFORMANCE LEVELS IN REPEATED HIGH-INTENSITY EXERCISE TASKS
Haub, M. D., Potteigher, J. A., Jacobsen, D. J., Nau, K. L., Magee, L. J., & Comeau, M. J. (1999). The effect of liquid carbohydrate ingestion on repeated maximal effort exercise and glycogen replenishment. Medicine and Science in Sports and Exercise, 31(5), Supplement abstract 456.
The purpose of this investigation was to determine the effects of liquid carbohydrate ingestion following high-intensity exercise on subsequent exercise performance and glycogen replenishment in trained males (N = 6). Ss performed a 100KJ-test, then consumed 0.7 g/kg of liquid CHO (maltodextrin) or placebo, rested 60 min, and then performed the same exercise test again. Glycogen replenishment factors between exercise bouts were measured.
Time to complete the second test increased significantly for the placebo condition but not the CHO condition. Glycogen replenishment was not affected by the treatment condition.
Implication Carbohydrate replenishment between bouts of high-intensity exercise served to maintain performance standards, while placebo conditions demonstrated a performance decline.
Return to Table of Contents for this issue.