Quality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation
Disentangling direct and weight-mediated effects of physical activity on health-related quality of life in a 12-month real-world digital lifestyle intervention
Par McCann I, Joki A, Suojanen LU et 3 autres.
Contenu en anglais
Résumé
Purpose
To examine whether participation in a 12-month digital lifestyle program was associated with increased physical activity and whether physical activity was associated with health-related quality of life (HRQoL) independently of weight loss.
Methods
Self-reported weight and height were used to calculate body mass index (BMI). Physical activity (metabolic equivalent of task hours, MET-h/day) was assessed using a web-based questionnaire at baseline, 3, 6, 9, and 12 months. HRQoL was measured with the RAND-36 at baseline, 6, and 12 months yielding eight domains and physical and mental component scores. Longitudinal mixed-effects models and mediation analyses were used to examine associations between physical activity, BMI, and HRQoL over time.