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Absolute heart weight at 9 and 24 weeks of age (A and B, respectively). Relative heart weight normalized to body weight at 9 and 24 weeks of age (C and D, respectively). Data are presented as mean ± SEM (n = 10–12/group). Early exercise (Early Ex) and later exercise (Later Ex). *P < 0.05 versus Sedentary, # P < 0.05 versus Restricted (Bonferroni comparisons of main effects).
