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Incorporating self-efficacy and interpersonal support in an intervention to increase physical activity in older women
Costanzo C, Walker SN
Women & Health 2008;47(4):91-108
clinical trial
5/10 [Eligibility criteria: Yes; Random allocation: Yes; Concealed allocation: No; Baseline comparability: Yes; Blind subjects: No; Blind therapists: No; Blind assessors: No; Adequate follow-up: Yes; Intention-to-treat analysis: No; Between-group comparisons: Yes; Point estimates and variability: Yes. Note: Eligibility criteria item does not contribute to total score] *This score has been confirmed*

PURPOSE: To compare the efficacy of five versus one session of Behavioral Counseling in a 12-week intervention to increase self-efficacy and family and friend support for activity, and examine self-efficacy and support as mediators of activity among 46 urban women. METHODS: A randomized, controlled trial conducted during 2004 in Omaha, Nebraska. Outcomes were analyzed with Repeated Measures-ANOVA and path analysis. FINDINGS: No significant change was observed in self-efficacy in the five-session group, but a significant decrease was observed in the one-session group (p = 0.005). Family and friend support increased significantly in the five-session group (p < 0.001, p = 0.019). The intervention effect on activity was mediated through change in self-efficacy and family support. CONCLUSIONS: Five behavioral counseling sessions maintained self-efficacy and increased family and friend support although the intervention did not directly affect activity. IMPLICATIONS: The intervention can be replicated within various community settings.

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