Article Document Academic Article Information Content Entity Continuant Continuant Journal Article Entity Entity Generically Dependent Continuant 2025-05-07T17:28:52 RDF description of Self-reported activity and accelerometry in 2 behavior-maintenance trials - http://repository.healthpartners.com/individual/document-rn6845 2022-02-21T22:48:57.408-06:00 10.5993/AJHB.38.2.11 Questionnaires Behavior 2 Physical Activity <p>OBJECTIVES: To compare between accelerometry (MVPA-A) and self-reported activity (MVPA-SR) in activity-maintenance (Keep Active Minnesota; KAM) and weight loss-maintenance (Keep It Off; KIO) trials. METHODS: Linear regression estimated moderation of study, treatment, or time on MVPA-A and MVPA-SR associations. RESULTS: MVPA-A was similar between studies (KAM 119 minutes, KIO 112 minutes, p = .555), whereas MVPA-SR differed significantly (KAM 350 minutes, KIO 87 minutes, p < .0001). Only study moderated correlation between MVPA-A and MVPA-SR. MVPA-SR better predicted MVPA-A in KIO relative to KAM (p = .023). CONCLUSIONS: Results suggest that self-presentation bias may influence validity of self-report in intervention studies with activity as a primary outcome. Researchers should select self-report to assess activity dimensions that objective measures capture poorly.<p> 11759 document-rn6845 Self Report Self-reported activity and accelerometry in 2 behavior-maintenance trials 18098 Comparative Studies 38 Body Mass Index American Journal of Health Behavior public