Using Images to Increase Exercise Behavior: Prototypes Versus Possible Selves

This study investigated the impact of health-related prototypes and possible selves on exercise behavior. In addition, this study examined if these effects might be moderated by individual differences—specifically social comparison (SC) and consideration of future consequences (CFC). One hundred and fifty-two students participated in all three waves of the study—premanipulation, manipulation, and follow-up. As expected, results indicated that individuals who were high on SC and exposed to a prototype manipulation increased their exercise behavior at follow-up. Furthermore, individuals who were future-oriented and exposed to a possible selves manipulation increased their exercise behavior at follow-up. Overall, results revealed that health images have an important impact on health behavior. Implications for behavior change are discussed.