OBJECTIVES: To predict exercise stage transitions over two consecutive 6-month periods using the theory of planned behaviour (TPB). It was hypothesized that different social cognitive constructs would predict different stage transitions. DESIGN: Prospective and longitudinal in order to predict multiple stage transitions over time. Assessments were made at baseline, 6 months and 1 year. METHOD: Participants were a randomly selected population-based sample of 683 adults who completed two telephone interviews (baseline and 6 months) that assessed exercise stage, intention, perceived behavioural control, attitude, subjective norm, and social support, and a mailed survey (1 year) that assessed exercise stage. RESULTS: Progression from pre-contemplation was predicted by intention, attitude and subjective norm; progression/regression from contemplation was predicted by intention, perceived behavioural control, attitude, and social support; progression/regression from preparation was predicted by intention and attitude; and regression from action/maintenance was predicted by intention, attitude and social support. CONCLUSIONS: Different social cognitive constructs predicted different stage transitions, which indicates that exercise behaviour change may be represented by a series of stage transitions. Moreover, the TPB may be a useful model for highlighting the key social cognitive constructs that are important for exercise stage transitions.
OBJECTIVES: To predict exercise stage transitions over two consecutive 6-month periods using the theory of planned behaviour (TPB). It was hypothesized that different social cognitive constructs would predict different stage transitions. DESIGN: Prospective and longitudinal in order to predict multiple stage transitions over time. Assessments were made at baseline, 6 months and 1 year. METHOD:Participants were a randomly selected population-based sample of 683 adults who completed two telephone interviews (baseline and 6 months) that assessed exercise stage, intention, perceived behavioural control, attitude, subjective norm, and social support, and a mailed survey (1 year) that assessed exercise stage. RESULTS: Progression from pre-contemplation was predicted by intention, attitude and subjective norm; progression/regression from contemplation was predicted by intention, perceived behavioural control, attitude, and social support; progression/regression from preparation was predicted by intention and attitude; and regression from action/maintenance was predicted by intention, attitude and social support. CONCLUSIONS: Different social cognitive constructs predicted different stage transitions, which indicates that exercise behaviour change may be represented by a series of stage transitions. Moreover, the TPB may be a useful model for highlighting the key social cognitive constructs that are important for exercise stage transitions.
Authors: Ronald C Plotnikoff; Michael A Pickering; Ryan E Rhodes; Kerry S Courneya; John C Spence Journal: Int J Behav Nutr Phys Act Date: 2010-05-03 Impact factor: 6.457
Authors: Philip J Morgan; Clare E Collins; Ronald C Plotnikoff; Patrick McElduff; Tracy Burrows; Janet M Warren; Myles D Young; Nina Berry; Kristen L Saunders; Elroy J Aguiar; Robin Callister Journal: BMC Public Health Date: 2010-11-16 Impact factor: 3.295
Authors: Kelli D Allen; Hayden B Bosworth; Dorothea S Brock; Jennifer G Chapman; Ranee Chatterjee; Cynthia J Coffman; Santanu K Datta; Rowena J Dolor; Amy S Jeffreys; Karen A Juntilla; Jennifer Kruszewski; Laurie E Marbrey; Jennifer McDuffie; Eugene Z Oddone; Nina Sperber; Mary P Sochacki; Catherine Stanwyck; Jennifer L Strauss; William S Yancy Journal: BMC Musculoskelet Disord Date: 2012-04-24 Impact factor: 2.362
Authors: Ronald C Plotnikoff; Kerry S Courneya; Ronald J Sigal; Jeffrey A Johnson; Nicholas Birkett; David Lau; Kim Raine; Steven T Johnson; Nandini Karunamuni Journal: Trials Date: 2010-01-12 Impact factor: 2.279