A comparison of high versus low dose of exercise training in exercise-based cardiac rehabilitation: a randomized controlled trial with 12-months follow-up.

A higher dose of exercise training had a small effect on all outcomes at termination of intervention. A long-term effect persisted in VO2peak and maximal workload. Although the effect was small, it is an important finding because VO2peak is the most important predictor of all-cause mortality in cardiac patients.