To assess a motivational interviewing (MI) intervention to improve moderate-to-vigorous physical activity (MVPA) in adolescents with congenital heart disease.
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 (physical activity, fitness, and quality of life).
Thirty-six participants 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. Participants accumulated 47.24 ± 16.36 minutes of MVPA/day, and had comparable outcomes to peers without heart disease (except for functional capacity). There was no significant difference in change in any outcome by group.
The intervention was acceptable, but effectiveness could not be determined due to the nature and size of sample.
Pediatric cardiac rehabilitation remains the sole effective intervention to increase MVPA in this population.
To assess a motivational interviewing intervention to improve moderate-to-vigorous physical activity in adolescents with congenital heart disease.
The Hospital for Sick Children (Drs McKillop, Banks, Schneiderman, and McCrindle), Toronto, Ontario, Canada; University Health Network (Drs Grace and Ghisi) and Dalla Lana School of Public Health (Dr Allison), University of Toronto, Toronto, Ontario, Canada; York University (Dr Grace), Toronto, Ontario, Canada; KR Allison Research Consulting (Dr Allison), Toronto, Ontario, Canada; Knight Cardiovascular Institute (Dr Kovacs), Oregon Health & Science University, Portland, Oregon.
Correspondence: Sherry L. Grace, PhD, York University, Bethune 368, 4700 Keele St, Toronto, ON M3J 1P3, Canada (firstname.lastname@example.org).
Funding Support: This study was supported by the Heart and Stroke Foundation of Ontario (Grant #7481) and the Labatt Family Heart Centre Innovation Fund.
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The authors declare no conflicts of interest.