Social cognitive theory variables mediation of moderate exercise.

Hortz (2008)
Summary by 

To identify the degree to which the social cognitive theory constructs targeted by the Planning to Be Active Program (PBA) were mediators of moderate-intensity exercise. High school students in treatment and comparison groups received activity-based physical education. The treatment group also received PBA, which develops self-regulation skills to promote leisure-time exercise. PBA increased self-regulation scores, social situation scores, and moderate-intensity exercise. Self-regulation and social situation mediated moderate-intensity exercise at posttest. As mediators, self-regulation and social situation help explain how PBA produces increases in moderate-intensity exercise.