Print Email Facebook Twitter The theory of planned behavior and physical activity change: Outcomes of the aging well and healthily intervention program for older adults Title The theory of planned behavior and physical activity change: Outcomes of the aging well and healthily intervention program for older adults Author Stolte, E. Hopman-Rock, M. Aartsen, M.J. van Tilburg, T.G. Chorus, A. Publication year 2017 Abstract The predictive value of the Theory of Planned Behavior (TPB) on intention and physical activity (PA) over time was examined. Data from the Aging Well and Healthily intervention program (targeting perceived behavioral control and attitude, not subjective norm) were analyzed, including pretest (T0), posttest (T1, except subjective norm) and 4-6 months follow-up (T2, PA outcomes only) (N = 387, M age 72 years). Structural equation modeling was used to test a TPB model. PA was measured subjectively using the Voorrips sports subscale (T0 and T2), items measured perceived increase in PA (T1), and adherence to exercises (T1 and T2). Model fit was good. The TPB explained variation in intention well (R2 .54-.60) and some PA behavior (R2 .13-.16). The intervention successfully got participants to exercise independent of the measured TPB concepts. More TPB studies in the context of interventions are needed. © 2017 Human Kinetics, Inc. Subject LifeCH - Child HealthELSS - Earth, Life and Social SciencesHealthy for LifeHealthHealthy LivingExerciseStructural equation modelingTheory testingAdultAgedAgingExerciseFemaleFollow upHumanMajor clinical studyMalePhysical activityPredictive valuePretest posttest designSportTheory of Planned Behavior To reference this document use: http://resolver.tudelft.nl/uuid:ffcf534a-b7ab-486d-9135-dc91f9c0b5a6 DOI https://doi.org/10.1123/japa.2016-0182 TNO identifier 777371 ISSN 1063-8652 Source Journal of Aging and Physical Activity, 25 (3), 438-445 Document type article Files To receive the publication files, please send an e-mail request to TNO Library.