Initial Effect Size Estimation of a Smartwatch-based Intervention for Physical and Behavioral Activation in Depressed Patients

We used smartwatches to provide an interactive tool for delivering a mixed intervention of physical and behavioral activation, with the former addressing physical activity level and the latter pleasant activities including and beyond physical activity (e.g., social, relaxing activities). Moreover, given the relationship with physical activity level, we additionally incorporated digital insomnia exercises that have also shown large effects in the amelioration of depression.