title: Predictors of physical activity stage of change among adults with physical disabilities.
abstract: OBJECTIVE
  To use the Transtheoretical Model (TTM) constructs to examine the most important physical activity stage of change predictors for mostly inactive adults with physical disabilities.
  
  
  METHODS
  A cross-sectional survey completed on the Internet. One hundred fifty-one individuals with physical disabilities (50% response rate) completed the survey questionnaires. Self-report standardized measures were used.
  
  
  RESULTS
  A direct discriminant function analysis revealed that the most important stage of change predictors were the behavioral (r2 = .88) and cognitive (r2 = .50) processes of change, followed by self-efficacy (r2 = .33) and decisional balance (r2 = .13). The most accurate stages in prediction were the contemplation (76.3%), preparation (58.3%), and precontemplation (40%) stages, whereas the least accurate stages were the action (0.0%) and maintenance (8.3%) stages.
  
  
  CONCLUSIONS
  Health promoters and educators may use strategies from the TTM to develop theory-driven physical activity motivational programs for the posited populace. Considering the cross-sectional design, study replication is warranted.
authors.affiliation: Department of Kinesiology, Louisiana State University, Baton Rouge, Louisiana 70803, USA.
authors.forename: Maria
authors.initials: M
authors.lastname: Kosma
authors.forename: Bradley J
authors.initials: BJ
authors.lastname: Cardinal
authors.forename: Jeffrey A
authors.initials: JA
authors.lastname: McCubbin
mesh_terms: D000328:Adult; D000704:Analysis of Variance; D016009:Chi-Square Distribution; D003430:Cross-Sectional Studies; D006233:Persons with Disabilities / Q000523:psychology*; D015444:Exercise / Q000523:psychology*; D005260:Female; D015438:Health Behavior; D006801:Humans; D008297:Male; D008875:Middle Aged; D008962:Models, Theoretical; D020377:Self Efficacy; D011795:Surveys and Questionnaires; D014481:United States