Abstract for: Determinants of and leverage points for the implementation of school based primary prevention for health behaviour change

School-based primary prevention interventions targeting dietary behaviours and physical activity have been extensively researched, but the dissemination of school-based interventions as part of evidence-based public health is slow. The lack of attention to implementation processes of such evidence-based interventions, as well as a missing understanding of the complex systems that these processes are integrated into, might explain the slow dissemination. In this study, we will look into primary prevention implementation from a system’s perspective to comprehend the dynamic of the determinants that influence the success of the implementation. For this purpose, we are going to use the Norwegian School Fruit Scheme (SFS) as a case study.