Investigating the Physical Activity Behaviour and Exercise Capacity of Pediatric Cardiomyopathy Patients

Kevin Moncion, University, My, University, My
2018
Physically active lifestyles are important for health and quality of life across all stages of development. Exercise interventions have recently been incorporated as an effective strategy for adult cardiomyopathy patients, but have yet to be examined in children with cardiomyopathy. The overall goal of this pilot study was to provide preliminary data on whether there is a need to develop exercise interventions among children with cardiomyopathy. This study sought to characterize the
more » ... ize the moderate-to-vigorous physical activity (MVPA) level, submaximal exercise capacity and physical activity barriers among children with cardiomyopathy. Methods: This study employed a mixed-methods approach. Children were eligible if they were between the ages of 5 to 17 years, had a medical diagnosis of cardiomyopathy (i.e. hypertrophic, dilated, or cancer induced), atrial septal defect, or had been identified as carrying a genetic risk for cardiomyopathy. Participants were excluded if they had physical activity contraindications, had a non-cardiac medical condition or disability known to influence physical activity, or if they underwent cardiac surgery within the preceding 6 months. MVPA was assessed using 7-day omnidirectional accelerometry. Submaximal exercise capacity was determined by intermittent treadmill protocol targeting 40% to 80% of predicted maximum heart rate. Physical activity barriers were identified through semi-structured interviews, which were audio-recorded and transcribed verbatim for thematic analysis using Braun & Clark's approach. Results: Pediatric cardiomyopathy patients (n=5) were compared to children who are genotypepositive but phenotype-negative for cardiomyopathy (n=5), children with simple congenital heart defects (CHD, n=8) and published data for Canadian children (n=1,300). Daily MVPA (48.2 ± 19.0 minutes) was variable but did not differ significantly between groups (η2=0.025, p=0.82) or from published data on Canadian children (t(17) = -1.52 p=0.15). Submaximal exercise testing revealed [...]
doi:10.20381/ruor-22438 fatcat:macpo56a4jc3xom3nunma2peqa