The purpose of this CEC is to discuss the impact trainers / exercise physiologists have on behavior change. It is necessary to first detail their role and value to the client. Trainers provide education, expertise and support all lending to the client’s motivation. Motivation to change behavior is impacted by the quality of rapport the client and the trainer have as well as goals and theoretical models of change. The subtlety of obtaining good rapport includes first gaining trust followed by collaborative goal setting. Goal resistance and mitigation of resistance will be explored, as many of the clients served will display this at some point in the process of behavior change. Lapse and relapse response and prevention will be covered as people with binge eating disorder or even occasional binge eating episodes experience these. After establishing the above, two theoretical models of change will be reviewed; Social Learning Model / Theory and the Transtheroetical Model with five stages. After reviewing the two models / theories, the larger group will break off into three smaller groups and work on applying all of the above to three different client scenarios.