Dissertation/Thesis Abstract

Relationships among self -efficacy, physical activity and BMI in children with congenital heart disease
by Ray, Trenda D., Ph.D., University of Arkansas for Medical Sciences, 2010, 85; 3410294
Abstract (Summary)

Introduction/purpose. With improved longevity of children with congenital heart disease (CHD), new health problems are now recognized including lack of physical activity and obesity. Links have been established between self-efficacy and physical activity and physical activity and obesity in healthy children. However, little is known about these concepts in children with CHD. Therefore the purpose of this study was to investigate the associations between these variables in children with CHD.

Methods. Children were recruited from the Cardiology Clinic at Arkansas Children's Hospital for this cross-sectional study. The self-report Self-Efficacy Scale (SES), Previous Day Physical Activity Recall Instrument (PDPAR) and items from the Youth Risk Behavior Survey (YRBS) were used in addition to clinical data including height, weight and BMI. Data were analyzed using descriptive statistics, Pearson correlation, and independent samples t-test.

Results. The sample consisted of 84 children (51 males and 33 females) with a mean age of 12 years. Children with a range of cardiac diagnoses, from mild disease to severe, were included. The average total self-efficacy score was 30.8 out of a maximum of 40 (SD 5.7). Using the PDPAR, the average physical activity of participants was 31.7 METs per day (SD 11.2). Self-efficacy and self-reported physical activity were positively correlated (r=.47; p=.00). Further, mean self-efficacy scores were higher for children with higher levels of physical activity (t=3.18; p=.005). Over 9.5% of the sample was overweight and 26.2% were considered obese. There was no significant association between BMI percentile and METs per day and no difference in physical activity participation between those who were obese or overweight and those who were not.

Discussion/conclusion. Children in this study reported low rates of physical activity participation, but reported self-efficacy scores comparable to those of healthy children. Of concern, the rates of obesity were higher than the general population and those previously reported in children with CHD. Because of the moderate correlation between self-efficacy and physical activity, factors beyond self-efficacy must be considered in order to gain a broader understanding these variables in this population. Further, both the physical activity and BMI data reveal considerable risk and must be addressed.

Indexing (document details)
Advisor: Green, Angela
Commitee:
School: University of Arkansas for Medical Sciences
School Location: United States -- Arkansas
Source: DAI-B 71/06, Dissertation Abstracts International
Source Type: DISSERTATION
Subjects: Nursing
Keywords: Children, Congenital heart disease, Obesity, Physical activity, Self-efficacy
Publication Number: 3410294
ISBN: 9781124014142
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