Jul 20, 2019

Mediating effects of exercise capacity on the association between physical activity and health-related quality of life among adolescents with complex congenital heart disease

American Journal of Human Biology : the Official Journal of the Human Biology Council
Hyun Jeong KimBarry A Franklin

Abstract

There is little evidence on interrelationships between physical activity, sedentary behaviors, and health-related quality of life (HRQOL) among adolescents with congenital heart disease (CHD). We hypothesized that exercise capacity would have a mediating effect on the associations of either physical activity or sedentary behavior with HRQOL. Adolescents with complex CHD (n = 111) were consecutively recruited from an outpatient clinic in a general hospital in South Korea. Physical activity and sedentary behavior were assessed using the global physical activity questionnaire. Exercise capacity was directly measured by peak oxygen uptake using a symptom-limited maximal treadmill exercise test. HRQOL was evaluated by both adolescents and their parents using the Pediatric Quality of Life Inventory questionnaire. The self-reported and parent proxy-reported HRQOL were positively associated with physical activity (ß = 0.16, P = .003; ß = 0.12, P = .049) and exercise capacity (ß = 0.63, P < .001; ß = 0.66, P < .001), but not with sedentary behavior in adjusted regression models. When both variables were entered in the same regression models, only exercise capacity remained significantly associated with the self-reported (ß = 0.50, P = ....Continue Reading

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Mentioned in this Paper

Alveolar Ventilation Function
Congenital Disorders
Treadmill Test
Outpatient Clinics, Hospital
Self-Report
Regression Analysis
Coronary Heart Disease
Reporting
Hospitals, General

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