Abstract：
INTRODUCTION:While previous studies indicate a significant relationship between self-efficacy and physical activity, less research has focused on this relationship among patients with type 2 diabetes. The purpose of this investigation was to examine whether self-efficacy mediated the relationship between participation in a 1-month, print-based physical activity intervention and improvements in activity levels. METHODS:Participants (N = 85; mean age = 57; 73% Caucasian; 69% female) were recruited from a community diabetes center. The intervention was individually-tailored based on theoretical constructs, including self-efficacy. RESULTS:After controlling for age, baseline activity, and baseline self-efficacy, the tailored intervention was associated with significant improvements in physical activity, 95% CI [23.01, 271.68] as well as self-efficacy, CI [0.02, 3.48]. There was an indirect effect of treatment on physical activity through self-efficacy, CI [0.77, 73.11], and the direct effect of treatment on physical activity was no longer significant, CI [-7.33, 253.40], after the influences of self-efficacy change were accounted for in the model. DISCUSSION:Results supported a mediation effect, such that the treatment effect on physical activity was completely mediated by changes in self-efficacy. Although replication is needed, results support the theoretical rationale for targeting self-efficacy to promote physical activity among patients with type 2 diabetes.
journal_name
J Behav Medjournal_title
Journal of behavioral medicineauthors
Dutton GR,Tan F,Provost BC,Sorenson JL,Allen B,Smith Ddoi
10.1007/s10865-009-9200-0subject
Has Abstractpub_date
2009-06-01 00:00:00pages
270-7issue
3eissn
0160-7715issn
1573-3521journal_volume
32pub_type
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