Purpose: Compare effects of exercise maintenance treatment (EMT) to usual care (UC) on moderate and vigorous physical activity (MVPA) after CR.
Methods: 449 patients (135 women, 314 men) completing CR were stratified by sex and randomly allocated to EMT (n=226) or UC (n=223). EMT participants received 1 face-to-face session, 5 group counseling teleconferences, and 3 personal telephone calls from an exercise facilitator over 50 weeks. UC participants received information about exercise maintenance. MVPA in bouts of =10 minutes, was measured by accelerometer at 26 and 52 weeks. Exercise capacity was a secondary outcome. Treatment effects were tested with mixed models.
Results: See Table. In main analysis, there were no significant effects for treatment or time on MVPA for women. In secondary analysis considering only women adherent to EMT (= 66% of sessions), MVPA was higher with EMT vs. UC (P=0.034). In main analysis of men, MVPA declined over time; there was no treatment effect. Results were similar considering men adherent to EMT. In women, exercise capacity showed better improvement with EMT vs. UC. In men, EMT had no effect on exercise capacity.
Conclusion: In CR completers, exercise maintenance treatment showed promise for women but not men.