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  • Title: Effects of oral creatine loading on single and repeated maximal short sprints.
    Author: Dawson B, Cutler M, Moody A, Lawrence S, Goodman C, Randall N.
    Journal: Aust J Sci Med Sport; 1995 Sep; 27(3):56-61. PubMed ID: 8599745.
    Abstract:
    This investigation determined whether oral creatine (Cr) loading could enhance single and repeated short sprint performance. A 1 x 10 s cycle sprint (Study One) and 6 x 6 s (departing every 30 s) repeated cycle sprints (Study two) were the performance tests used. Separate groups of subjects, randomly assigned to either a Cr or placebo (P) group, were used in each study in a double blind design. After performing a familiarization and two baseline tests subjects loaded with 5g of Cr or P four times per day for five days before repeating the tests one and three days post-loading. In Study One (n = 9 in each group), work completed (kJ) at 2, 4, 6, 8 and 10 s and peak power (W) were greater than baseline values in each of the post-loading trials in both the Cr and P groups. There were no between group performance differences. In Study Two (n = 11 in each group) after loading, the Cr group recorded significantly greater scores than the P group in total work (kJ) completed over the 6 sprints, work completed in sprint 1, and peak power (W). Post-exercise blood lactate and pH responses were not different between the Cr and P groups after loading in either study. Although Study One results are equivocal, Study Two results suggest that Cr supplementation can enhance both single (if sprint 1 results are considered in isolation) and repeated short sprint performance.
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