British Journal of Sports Medicine 2008;42:71-73
SHORT REPORTS
ACTN3 genotype in professional soccer players
1 Universidad Europea de Madrid, Madrid, Spain
2 Medical Department, Real Madrid Football Club, Madrid, Spain
3 Institut für Sportmedizin, Universität Paderborn, Paderborn, Germany
Professor A Lucia, Universidad Europea de Madrid, Villaviciosa de Odón, Madrid 28670, Spain; alejandro.lucia{at}uem.es
The authors studied the frequency distribution of 
-actinin-3 (ACTN3) R577X genotypes in 60 top-level professional soccer players. The results were compared with those of 52 elite endurance athletes and 123 sedentary controls. The per cent distribution of RR and RX genotypes in soccer players (48.3% and 36.7%) was significantly higher and lower, respectively, than controls (28.5% and 53.7%) and endurance athletes (26.5% and 52%) (p = 0.041). Although there are notable exceptions, elite soccer players tend to have the sprint/power ACTN3 genotype.
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