HIIT Versus Moderate Continuous Training in ACHD

This study is a single center randomized controlled trial evaluating the effect of an exercise training intervention (interval training or moderate continuous training) compared to usual care (no training) on exercise capacity in patients with congenital heart disease (CHD). Our primary aim is to determine the impact of interval training (IT) compared to moderate continuous exercise training (MCT) versus controls (no exercise) on exercise capacity as measured by peak VO2. Secondary aims are to: 1) assess the safety of exercise training in CHD, 2) evaluate the effect of exercise training on cardiac structure and function and 3) assess the effects of exercise training on quality of life and long-term physical activity.

NCT Number	NCT07546227
Lead Sponsor	University of Alberta
Conditions	Adult Congenital Heart Disease
Enrollment	47 participants
Start Date	2015-10-20
Primary Completion	2023-05-31 (estimated)
Study Completion	2024-04-30 (estimated)
Updated on ClinicalTrials.gov	2026-04-29