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Chew, Matthew Paul

College of Education and Social Services

2009

MEd

Purpose: The primary objective of this study was to basically and briefly evaluate the effects of a carbohydrate juice blend with added protein, a carbohydrate only beverage, and water in a group of trained rowers in two bouts of high intensity exercise separated by two hours; and to determine whether there was a significant difference in the performance attributed to the type of beverage consumed by the athlete. Methods: Twenty-four healthy subjects, 13 male (age = 19 ± 0.88 yrs., height = 183.89 ± 5.73 cm, weight = 79.73 ± 5.85 kg, percent body fat = 11.21 ± 4.58%) and 11 female (age = 19.09 ± 0.90 yrs., height = 167 ± 21.93 ± 6.28%) were recruited based on their involvement with a college Crew Team. After consuming a fixed meal, each subject performed a 10km time trial.
Subject's then received and consumed a recovery beverage (CHO+PRO, CHO only, or water) during a two-hour rest period. Each subject then performed a second 10km time trial. Time to completion and ending heart rate were recorded for each trial. Results: With an alpha level set at P <0.05, an ANOVA statistical analysis compared means of the CHO+PRO group and water group, the CHO+PRO group and CHO only group, and the CHO only group and water group. A significant difference was not observed between any two of the groups. Although there was a difference observed when the CHO+PRO and CHO only groups were combined and compared to the water group it was not significant due to the sampling size. Conclusion: The main finding in the present study was that a CHO+PRO recovery beverage did not improve performance in a subsequent 10k time trial performed on a stationary ergo meter when compared with a CHO only recovery beverage when the recovery beverage was consumed between the two time trials.