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- Title
Incorrect calculation of power outputs masks the ergogenic capacity of creatine supplementation.
- Authors
Havenetidis, Konstadinos; Cooke, Carlton B.; Butterly, Ron; King, Roderick F. G. J.
- Abstract
This study assessed the effect of incorrect calculation of power output measurement on the ergogenic properties of creatine. Fifteen males performed repeated Wingate anaerobic tests, under baseline, placebo, and creatine conditions. Statistics showed significant differences (p < 0.05) following creatine-supplemented conditions compared with placebo conditions, whereas no significant differences existed between the baseline and placebo conditions. However, the performance enhancement effect of creatine became significant only when the corrected (for the inertia of the flywheel) method was employed for measuring peak and minimum power. Mean (±SD) values across all cycle sprints for placebo versus creatine were 1033 100 W versus 1130 95 W for peak power and 385 78 W versus 427 70 W for minimum power. No significant differences were shown using the uncorrected method for peak power (756 97 W versus 786 88 W) and minimum power 440 64 W pre versus 452 65 W post). In conclusion, the present study suggests that the potentiating effect of creatine might be underestimated if the inertial effects of the flywheel are not considered in power output determination.
- Subjects
INGESTION; ERGOGENIC aids; CREATINE; MALES; PLACEBOS; RESEARCH
- Publication
Applied Physiology, Nutrition & Metabolism, 2006, Vol 31, Issue 5, p635
- ISSN
1715-5312
- Publication type
Article
- DOI
10.1139/H06-037