Figure 2

Assessment of CD31-positive capillaries. Two observers counted the number of CD31-immunostained capillaries on 10 cross sections for each heart and the means of values were considered as the data. Bonferroni’s multiple comparison test was used to analyze the significant differences within and between sedentary (C) and trained (T) groups at different time points. *P < 0.05 T30 and T45 vs. C samples and T15; #P < 0.05 T45 vs. T30).