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Authors

  1. Pinto, Bernardine M. PhD
  2. Dunsiger, Shira I. PhD

Abstract

PURPOSE: Exercise maintenance after completing phase II cardiac rehabilitation (CR) is challenging for many patients. A telephone-based maintenance intervention improved exercise participation compared with a control group at 12 months post-CR discharge. We examined the 6-month mediators of intervention effects on exercise.

 

METHODS: In a randomized controlled trial, 130 patients who had completed CR (mean age: 63.6 [SD = 9.7] years, 20.8% female) were randomized to Maintenance Counseling (n = 64) or Contact Control (n = 66). Putative mediators examined the following: self-efficacy, behavioral processes of change, decisional balance index, social support for exercise, and enjoyment of exercise.

 

RESULTS: Multiple mediation analyses showed that the intervention significantly increased social support from friends at 6 months but not the other constructs. Decreasing support from friends mediated greater exercise participation in Maintenance Counseling than in Contact Control at 12 months.

 

CONCLUSIONS: Social support from friends functioned as a suppressor mediator for exercise maintenance among cardiac patients.