Purpose: To assess a motivational interviewing (MI) intervention to improve moderate-to-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 limited-efficacy (PA, fitness and quality of life). Findings:36(66.7%) patients (50.0% male; 15.1±1.5years)were randomized. Intervention participants completed 4.2±1.2/6MI sessions, with no improvements in the high self-efficacy or stage of change observed(p>0.05). Overall, participants accumulated 47.24±16.36minutes 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.
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This is a non-final version of an article published in final form in (Pediatric Physical Therapy. 2018 Oct;30(4):326-334).