title: Synergistic effects of planning and self-efficacy on physical activity.
abstract: Many individuals are motivated to improve their physical activity levels but often fail to act on their good intention. This study examines the roles of planning and self-efficacy in the prediction of physical activity. A total of 290 participants (77% women, mean age = 41.9 years) were surveyed three times. Intentions, planning, and physical activity were specified as a mediator chain. Results reveal that intentions were partly translated into physical activity by planning. Self-efficacy moderated this mediation, reflected by a planning × self-efficacy interaction (p < .05) on physical activity accounting for 16% of the variance in behavior. If a person is self-efficacious, planning seems more likely to be translated into physical activity.
authors.affiliation: Department of Health Psychology, Freie Universität Berlin, Berlin, Germany. milena.koring@fu-berlin.de
authors.forename: Milena
authors.initials: M
authors.lastname: Koring
authors.forename: Jana
authors.initials: J
authors.lastname: Richert
authors.forename: Sonia
authors.initials: S
authors.lastname: Lippke
authors.forename: Linda
authors.initials: L
authors.lastname: Parschau
authors.forename: Tabea
authors.initials: T
authors.lastname: Reuter
authors.forename: Ralf
authors.initials: R
authors.lastname: Schwarzer
mesh_terms: D000328:Adult; D015444:Exercise / Q000523:psychology*; D005260:Female; D015438:Health Behavior; D006801:Humans; D033182:Intention; D009042:Motivation; D020377:Self Efficacy