Body surveillance prospectively linked with physical activity via body shame in adolescent girls.

The socialization of girls to habitually monitor their bodies, via the process of body surveillance, contributes to an increased risk of negative physical and psychological experiences. The present study examined if body surveillance may also contribute to the decrease in physical activity that is observed in girls during adolescence, and if this association is mediated by body shame (operationalized as both experienced and anticipated shame when imagining changes to one's body in the future). Physically active adolescent girls (n = 206) reported body surveillance at baseline, and measures of experienced and anticpated body shame, and physical activity two years later. Body surveillance was indirectly associated with physical activity via the experience and anticipation of body shame. Specifically, the experience of body shame was associated with lower reported engagement in physical activity (b = -0.13, 95 % CI [-0.23, -0.03]), whereas the anticipation of body shame was associated with higher physical activity (b = 0.07, 95 % CI [0.01, 0.15]), possibly for the purpose of appearance management. Due to the opposing directional effects of experienced versus anticipated body shame, it is important to consider both facets of this emotional experience in understanding how vigilant bodily monitoring impacts physical activity engagement in adolescent girls.