Predictors of physical activity stage of change among adults with physical disabilities.
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.
Kosma
Maria
M
Department of Kinesiology, Louisiana State University, Baton Rouge, Louisiana 70803, USA.
Cardinal
Bradley J
BJ
McCubbin
Jeffrey A
JA
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