PRE-PERFORMANCE CREATINE DOES NOT ASSIST SPRINT PERFORMANCE
Gilbert, L., Reneau, P., & Ryan, M. (2011). The effect of an acute intake of creatine supplementation on intermittent sprints. Medicine and Science in Sports and Exercise, 43(5). Supplement abstract 2962.
This study determined how an acute intake of supplemental creatine impacted the ability to perform sprints lasting 30 seconds or more. Males (N = 13) and females (N = 7) were tested on two occasions separated by at least five days. Testing consisted of five suicide sprints on a basketball court, each run separated by two minutes. One hour before testing, Ss drank either water or a mixture of water and supplemental creatine. After each sprint heart rate, rating of perceived exertion, and run time were recorded. Following the last sprint, Ss were asked if they felt performance was affected by the creatine.
No differences were found between the water and supplemental creatine tests for each variable measured for each sprint. A significant difference was found within treatments for all variables measured. Results of the post-test question concerning perception of effect on performance impact yielded the following: N = 4 replied supplemental creatine enhanced, N = 9 replied supplemental creatine inhibited, and N = 7 replied no difference.
Implication. A single pre-performance dose of creatine does not aid in sprint performance of either the first sprint or a series of sprints. A majority of Ss felt that supplemental creatine intake inhibited or made no difference in performance.
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