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The Effect of Creatine Monohydrate Supplementation on Maximum Power Output and Fatigue Index in Young Healthy Males

Journal: Journal of Exercise Physiology and Health (Vol.3, No. 1)

Publication Date:

Authors : ;

Page : 14-18

Keywords : Creatine Monohydrate (CrM); Supplementation; Maximum Power Output; Fatigue Index;

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Background: The aim of the present study was to determine the effect of creatine monohydrate (CrM) supplementation on maximum power output and fatigue index in healthy young males. Methods: Eighteen healthy young males (Age 21.12 ± 1.2 yrs, weight 68.4 ± 7.2 kg, and height 177.4 ± 5.95 cm) were randomly divided on a double-blind basis to two experimental and control groups. Before and after the daily ingestion of 20g CrM for 5 days (experimental group) or placebo (control group), subjects performed Running-based Anaerobic Sprint Test (RAST). Maximum power output and fatigue index values were calculated in pre and post-test for each subject. The acquired data were analyzed by MedCalc software and using t-tests. Results: Maximum power output was increased from 717.9 ± 219.4 W to 799.7±216.3 W (P < 0.05) after the CrM supplementation in the experimental group, but no change was observed in the control group (722.2 ± 158.4 W to 719.1 ± 151.6 W) (P < 0.05). No significant differences were observed in the fatigue index after the CrM supplementation in either experimental or control group (P < 0.05). Conclusions: The results showed that CrM can increase maximum power output during high intensity exercise. However, these findings demonstrated that CrM supplementation cannot affect fatigue index in healthy young males.

Last modified: 2020-03-30 08:11:53