Improving employer and employee well-being in small and medium-sized enterprises in Flanders: a realist evaluation protocol of the FitBonus program

This realist evaluation protocol aims to elucidate the mechanisms and contextual factors influencing the FitBonus program's potential success in improving physical, mental, and social well-being, as well as perceived workability. The insights gained from this evaluation will offer actionable recommendations for optimizing the program's implementation and effectiveness. Additionally, by enhancing the understanding of how well-being interventions work in various organizational contexts, this study can inform the development of future workplace well-being programs, leading to more targeted and effective interventions.