Fig. 3From: Purple grape juice improves performance of recreational runners, but the effect is genotype dependent: a double blind, randomized, controlled trialTime-to-exhaustion of recreational runners after supplementation with a single dose of whole purple grape juice, according to the genotypes for the SOD3 and PPARα genes (mean ± standard deviation). A relative variation from time-to-exhaustion in the genotyped groups; B and C individual analysis of the time until exhaustion, of each athlete for the SOD3 genotype; D and E - individual analysis of the time until exhaustion, of each athlete for the PPARα genotypes. p < 0.05 - indicates a significant difference between the groups analyzed by a paired t test ( n = 47)Back to article page