title: An extended theory of planned behavior intervention for older adults with type 2 diabetes and cardiovascular disease.
abstract: A randomized controlled trial evaluated the effectiveness of a 4-wk extended theory of planned behavior (TPB) intervention to promote regular physical activity and healthy eating among older adults diagnosed with Type 2 diabetes or cardiovascular disease (N = 183). Participants completed TPB measures of attitude, subjective norm, perceived behavioral control, and intention, as well as planning and behavior, at preintervention and 1 wk and 6 wk postintervention for each behavior. No significant time-by-condition effects emerged for healthy eating. For physical activity, significant time-by-condition effects were found for behavior, intention, planning, perceived behavioral control, and subjective norm. In particular, compared with control participants, the intervention group showed short-term improvements in physical activity and planning, with further analyses indicating that the effect of the intervention on behavior was mediated by planning. The results indicate that TPB-based interventions including planning strategies may encourage physical activity among older people with diabetes and cardiovascular disease.
authors.affiliation: School of Psychology and Counselling, Queensland University of Technology, Brisbane, Australia.
authors.forename: Katherine M
authors.initials: KM
authors.lastname: White
authors.forename: Deborah J
authors.initials: DJ
authors.lastname: Terry
authors.forename: Carolyn
authors.initials: C
authors.lastname: Troup
authors.forename: Lynn A
authors.initials: LA
authors.lastname: Rempel
authors.forename: Paul
authors.initials: P
authors.lastname: Norman
authors.forename: Kerry
authors.initials: K
authors.lastname: Mummery
authors.forename: Malcolm
authors.initials: M
authors.lastname: Riley
authors.forename: Natasha
authors.initials: N
authors.lastname: Posner
authors.forename: Justin
authors.initials: J
authors.lastname: Kenardy
mesh_terms: D000367:Age Factors; D000375:Aging / Q000523:psychology*; D000704:Analysis of Variance; D002318:Cardiovascular Diseases / Q000517:prevention & control* / Q000523:psychology; D003924:Diabetes Mellitus, Type 2 / Q000178:diet therapy / Q000517:prevention & control* / Q000523:psychology; D004032:Diet; D015444:Exercise / Q000502:physiology / Q000523:psychology; D005260:Female; D015438:Health Behavior; D006801:Humans; D008297:Male; D008875:Middle Aged; D009043:Motor Activity / Q000502:physiology; D009749:Nutrition Surveys; D009752:Nutritional Status; D015397:Program Evaluation; D011582:Psychological Theory