Fig. 3From: ACTN3 Polymorphism: Comparison Between Elite Swimmers and RunnersThe ACTN3 R577X polymorphism (a genotype frequencies, b allele frequencies) in endurance athletes (LDR and LDS). *χ 2(1) = 4.25, p < 0.04, RR genotype, LDR vs. LDS. #χ 2(1) = 4.30, p < 0.04, allele frequency, LDR vs. LDSBack to article page