The ACTN3 R577X polymorphism is associated with muscle power in male Japanese athletes

Journal of Strength and Conditioning Research
Naoki KikuchiShoji Igawa

Abstract

In this study, we investigated whether the ACTN3 R577X polymorphism is associated with muscular power in Japanese collegiate athletes by analyzing the mean and peak power results of a 30-second Wingate anaerobic test (WAnT) with respect to the ACTN3 R577X genotype in 253 Japanese athletes (144 men and 109 women). Each athlete performed a 30-second WAnT with a resistance equal to 7.5% of his or her body weight. Genotyping for the ACTN3 R577X (rs1815739) polymorphism was performed using the TaqMan approach. The ACTN3 R577X genotypes exhibited a Hardy-Weinberg equilibrium distribution in our population. The relative and absolute mean power results of the 30-second WAnT did not differ significantly among the genotypes. However, the relative peak power result of the WAnT was significantly higher in the R-allele-dominant model groups than in the XX group in male but not female athletes. These results suggest that the ACTN3 R allele is associated with the relative peak power during the WAnT in male Japanese collegiate athletes.

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Citations

Sep 2, 2015·European Journal of Sport Science·Naoki KikuchiNoriyuki Fuku
Mar 13, 2015·Applied Physiology, Nutrition, and Metabolism = Physiologie Appliquée, Nutrition Et Métabolisme·Naoki KikuchiKoichi Nakazato
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Oct 1, 2014·Journal of Strength and Conditioning Research·Joanna OrysiakAndrzej Pokrywka
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