Neighborhoods on the move: a community-based participatory research approach to promoting physical activity.

Background: There is a scientific and practical need for high-quality effectiveness studies of physical activity interventions in "real-world" settings.

Objective: To use a community-based participatory research (CBPR) approach to develop, implement, operate, and evaluate an intervention for promoting physical activity called Neighborhoods on the Move.

Methods: Two communities with similar physical and social characteristics participated in this study.