Figure 2:

A) Peak oxygen uptake (peak VO₂) in the aerobic exercise and stretching groups at baseline and six- and 12-month follow-ups. Estimated marginal means (solid lines), 95% confidence intervals (dashed lines), and p-values were calculated from the linear mixed model based on the intent-to-treat analysis. B) Percent changes in peak VO₂ compared between the aerobic and stretching groups at each time point. p-values were calculated from the linear mixed model based on complete outcome data. Both models were adjusted for baseline age and sex. *p<0.05 for post-hoc pairwise comparisons with the Bonferroni correction. Black lines represent mean values.