Fig. 1From: Comparison of human erythrocyte purine nucleotide metabolism and blood purine and pyrimidine degradation product concentrations before and after acute exercise in trained and sedentary subjectsPercentage of RBCs distributed in density fractions between 1.075 and 1.115 g/mL in sedentary and trained subjects. *P < 0.05; **P < 0.01; different from sedentaryBack to article page