Intervention-mediated effects for adult physical activity: A latent growth curve analysis.

Social Science & Medicine
Scott C RoeschKevin Patrick

Abstract

Data from two randomized clinical trials (RCT) were used to examine the extent to which a health promotion intervention affected changes in growth trajectories of psychosocial constructs and if so, whether these constructs in turn explained changes in physical activity (PA). PA and psychosocial measures on 842 overweight adults in the United States were collected in two RCTs evaluating Internet-based behavior change interventions with assessments at baseline, 6 and 12 months. A physical activity latent variable at 12 months was created using indicators of self-reported walking and leisure time activities. Intervention-mediated effects on PA at 12 months were found via latent growth curves representing self-efficacy and behavioral strategies, where increasing growth curves across time were associated with higher PA values at 12 months. These findings provide some evidence that web-based self-help intervention programs worked through targeted behavior change constructs to influence physical activity levels in overweight adults.

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Citations

Mar 5, 2013·The International Journal of Behavioral Nutrition and Physical Activity·Ellinor K OlanderDavid P French
Nov 21, 2013·European Journal of Sport Science·Dagmar SigmundováKarel Frömel
Jan 17, 2015·The International Journal of Behavioral Nutrition and Physical Activity·Fiona GillisonColin Greaves
Jul 31, 2013·Medical Hypotheses·Alvaro Camacho
Mar 22, 2014·Journal of Applied Gerontology : the Official Journal of the Southern Gerontological Society·Rashmita BasuAlan B Stevens
Apr 1, 2013·Journal of Health Services Research & Policy·Suzanne SuggsScott Lloyd
Oct 22, 2019·Gerontology & Geriatric Medicine·Tamara A BakerJacquelyn A Minahan
Feb 14, 2021·Annals of Behavioral Medicine : a Publication of the Society of Behavioral Medicine·Windy W AlonsoBunny Pozehl

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