title: Affective and health-related outcome expectancies for physical activity in older adults.
abstract: This study tests the effects of affective and health-related outcome expectancies on physical exercise, assuming stronger direct and indirect (via intention) effects from affective outcome expectancy to physical exercise than from health-related outcome expectancy to exercise. Physical exercise and social cognitive variables were assessed at baseline, and 6- and 12-month follow-up in 335 older adults (60-95 years of age). Applying structural equation modelling, there was a direct effect from affective, but not from health-related outcome expectancy on intentions and behaviour. Also, the indirect effect from self-efficacy on physical exercise via affective outcome expectancy was significant, whereas the mediation via health-related outcome expectancy was not. These findings emphasise the relative importance of affective versus health-related outcome expectancies in predicting intentions and physical exercise in older adults and highlight the importance to separate these facets at a conceptual level to enhance both theory development and health promotion.
authors.affiliation: Deparment of Health Psychology, Freie Universität Berlin, Berlin 14195, Germany. paul.gellert@fu-berlin.de
authors.forename: Paul
authors.initials: P
authors.lastname: Gellert
authors.forename: Jochen P
authors.initials: JP
authors.lastname: Ziegelmann
authors.forename: Ralf
authors.initials: R
authors.lastname: Schwarzer
mesh_terms: D000339:Affect; D000367:Age Factors; D000368:Aged; D015444:Exercise; D005260:Female; D015438:Health Behavior; D006801:Humans; D033182:Intention; D008137:Longitudinal Studies; D008297:Male; D008875:Middle Aged; D008960:Models, Psychological; D017063:Outcome Assessment, Health Care