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Previous studies have indicated a higher risk of disordered eating in certain types of elite sports such as aesthetic sports (e.g., rhythmical gymnastics, figure skating). But even though some studies on risk factors for disordered eating in sports exist, most research on this topic is based on cross-sectional data with limitations on causal inferences. We examined sports-related risk factors for disordered eating in a 1-year longitudinal study with two assessment points. The participants were 65 adolescent athletes from aesthetic sports (mean age 14.0  ±.2.2 years) who completed measures of disordered eating, social pressure from the sports environment, sports-related body dissatisfaction, desire to be leaner to improve sports performance, and emotional distress resulting from missed exercise sessions. All variables were relatively stable in the mean. Individual changes in the desire to be leaner to improve sports performance were associated with individual changes in disordered eating. Furthermore, a cross-lagged partial correlation analysis showed that the desire to be leaner to improve sports performance was predictive of disordered eating and not vice versa. The results of our study indicate that athletes are more at risk for disordered eating if they believe it is possible to enhance their sports performance through weight regulation.

Aim: Disordered eating is a significant social and economic issue in Western societies. Weight and shape concerns are highly prevalent during adolescence and an alarming percentage of adolescents already show disturbed eating patterns. Sociocultural factors like the beauty ideal promoted by the media and social agents are among the main reasons for this trend. Prevention programmes which focus on established protective and risk factors are needed to counteract problematic developments as early as possible. Subject and methods: In this paper we describe the development and the contents of a structured school-based eating disorder prevention programme for adolescents. Results: The POPS programme (POtsdam Prevention at Schools) is an interactive multisession programme and encompasses nine lessons for pupils and one meeting with the parents. The programme is based on current research on risk and protective factors for eating disorders with an emphasis on sociocultural factors. It is designed to enhance resources based on the life skills approach. We included for instance lessons to enhance healthy eating and exercise habits and to reduce unhealthy dieting, to build up resistance through media literacy and strategies to react to social pressure. To further enhance life skills we integrated the impartation of problem-solving techniques and coping strategies which are potential protective factors not only in relation to eating disorders but also other diseases. In contrast to most existing programmes, psychoeducation on eating disorders is not part of the POPS programme for pupils but part of the information session for the parents. Conclusion: POPS is a theory-based, structured prevention programme that can be implemented by teachers as part of regular lessons

Eating disorders are serious, hard to treat and widely spread. Hence it was the goal of the present project to develop and evaluate a universal preventive concept (Potsdam Prevention at Schools). The POPS programme focuses in an interactive manner on topics such as coping with social pressure, strengthening the media and problem-solving competence and healthy eating. Results from the ITT analysis support its efficacy, even over the course of one year in terms of reduction of body dissatisfaction, perceived media pressure, internalising of the media beauty ideal and disordered eating.

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