Promoting physical activity among cancer survivors: Meta-analysis and meta-CART analysis of randomized controlled trials.

Objective: We conducted a meta-analysis of physical activity interventions among cancer survivors to (a) quantify the magnitude of intervention effects on physical activity and (b) determine what combination of intervention strategies maximizes behavior change.

Method: Out of 32,626 records that were located using computerized searches, 138 independent tests ( = 13,050) met the inclusion criteria for the review. We developed a bespoke taxonomy of 34 categories of techniques designed to promote psychological change, and categorized sample, intervention, and methodological characteristics.