Adapted Motivational Interviewing to Promote Exercise in Adolescents With Congenital Heart Disease: A Pilot Trial
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Abstract
Purpose: To assess a motivational interviewing (MI) intervention to improve moderateto-vigorous physical activity (MVPA) in adolescents with congenital heart disease.
Design: Pilot randomized controlled trial. Methods: Intervention participants received one-on-one telephone-based adapted MI sessions over 3 months. Outcomes were acceptability, change mechanisms (stage of change and self-efficacy), and limitedefficacy (PA, fitness and quality of life).
Findings: 36 (66.7%) patients (50.0% male; 15.1±1.5 years) were randomized. Intervention participants completed 4.2±1.2/6 MI sessions, with no improvements in the high self-efficacy or stage of change observed (p>0.05). Overall, participants accumulated 47.24±16.36 minutes of MVPA/day, and had comparable outcomes to healthy peers (except for functional capacity). There was no significant difference in change in any outcome by group.
Conclusions: The intervention was acceptable, but effectiveness could not be determined due to the nature and size of sample.
Clinical Relevance: Pediatric cardiac rehabilitation remains the sole effective intervention to increase MVPA in this population.