Description of physical activity interventions -- The stage of motivational readiness for change model -- Integrating other psychological theories and models -- Learning about physical activity mediators -- Evaluating and measuring physical activity mediators -- Successful physical activity interventions using the stages model -- Assessing physical activity patterns and physical fitness -- Using the stages model in individual counseling -- Using the stages model in group counseling programs -- Using the stages model in work-site programs -- Using the stages model in community programs