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Journal Article
Randomized Controlled Trial
Effect of low dose, short-term creatine supplementation on muscle power output in elite youth soccer players.
BACKGROUND: To determine the effects of a low dose, short-term Creatine monohydrate (Cr) supplementation (0.03 g.kg.d-1 during 14 d) on muscle power output in elite youth soccer players.
METHODS: Using a two-group matched, double blind, placebo-controlled design, nineteen male soccer players (mean age = 17.0 ± 0.5 years) were randomly assigned to either Cr ( N = 9) or placebo ( N = 10) group. Before and after supplementation, participants performed a 30s Wingate Anaerobic Test (WAnT) to assess peak power output (PPO), mean power output (MPO), fatigue index (FI), and total work.
RESULTS: There were significant increases in both PPO and MPO after the Cr supplementation period ( P ≤ 0.05) but not the placebo period. There were also significant increases in total work, but not FI, after the Cr supplementation and placebo periods ( P ≤ 0.05). Notably, there were differences in total work between the Cr and placebo groups after ( P ≤ 0.05) but not before the 14 d supplementation period.
CONCLUSION: There is substantial evidence to indicate that a low-dose, short-term oral Cr supplementation beneficially affected muscle power output in elite youth soccer players.
METHODS: Using a two-group matched, double blind, placebo-controlled design, nineteen male soccer players (mean age = 17.0 ± 0.5 years) were randomly assigned to either Cr ( N = 9) or placebo ( N = 10) group. Before and after supplementation, participants performed a 30s Wingate Anaerobic Test (WAnT) to assess peak power output (PPO), mean power output (MPO), fatigue index (FI), and total work.
RESULTS: There were significant increases in both PPO and MPO after the Cr supplementation period ( P ≤ 0.05) but not the placebo period. There were also significant increases in total work, but not FI, after the Cr supplementation and placebo periods ( P ≤ 0.05). Notably, there were differences in total work between the Cr and placebo groups after ( P ≤ 0.05) but not before the 14 d supplementation period.
CONCLUSION: There is substantial evidence to indicate that a low-dose, short-term oral Cr supplementation beneficially affected muscle power output in elite youth soccer players.
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