A nested case–control study: personal, social and environmental correlates of vigorous physical activity in adolescents with asthma

Abstract

Objective: Physical activity (PA) is associated with health benefits. Children and adolescents with asthma may be limited in their PA, particularly at vigorous intensity due to asthma symptoms or poor psychological adjustment to asthma. We aimed to investigate if self-perceived competence, enjoyment, support from others and social-physical environment were associated with vigorous physical activity (VPA) and secondarily to assess if such associations were modified by asthma and asthma severity. Methods: Data from a nested case–control study at 13 years of age within the birth-cohort Environment and Childhood Asthma Study were compiled from 95 participants with and 79 without asthma. The participants completed a questionnaire designed to capture self-perceived competence, enjoyment, support from others and social-physical environment. VPA, defined as ≥ 6 Metabolic Equivalents, was recorded objectively by SenseWear™ Pro₂ Armband. Asthma severity was assessed pragmatically by lung function and use of inhaled glucocorticosteroids and β_2-agonists and incidence of exacerbations in the last 14 days. Data were analysed using linear regression analysis. Results: No significant differences between adolescents with and without asthma were identified in terms of VPA, competence-enjoyment, support from others and social-physical environment. Peer support (b = 0.29 (0.05–0.52)) and competence-enjoyment (b = 0.23 (0.01–0.44)) were significantly and positively associated with VPA, and teacher support (b = –0.26 (−0.50 to −0.02)) were inversely associated. The model explained 25% of the variance in VPA. Conclusions: Peer support and competence-enjoyment were positively associated with increased VPN in adolescents irrespectively of asthma and asthma severity.

• MeSH
• competence
• social support
• social environment
• psychological adjustment
• health benefits
• factor analysis

Declaration of interest

The authors report no conflicts of interest. The authors alone are responsible for the content and writing the paper.

This study was supported by grants from the South-Eastern Norway Regional Health Authority.

Notes

†This study was performed within ORAACLE (the Oslo Research Group of Asthma and Allergy in Childhood; the Lung and Environment), a member of MeDALL (Mechanisms of the Development of ALLergy), a collaborative project conducted within the European Union under the Health Cooperation Work Programme of the 7th Framework programme (grant agreement no. 261357).