A recent shift in health promotion research stresses the importance of considering all behaviors in one 24-hour day instead of focusing on each behavior separately (i.e. physical activity, sitting time, sleep). This is a novel approach within health promotion and may be included in lifestyle interventions focusing on overweight or obese (OwOb) individuals. However, high drop-out rates in these lifestyle interventions and non-adherence of healthy lifestyle behaviors is a recurring problem among this at-risk individuals. However, a co-creational approach to develop intervention components together with the participants proved to increase autonomous motivation and empowerment, which in turn are associated with adherence to a healthy lifestyle. Nevertheless, there are no studies investigating (1) the 24-hour movement composition among OwOb individuals in combination with (2) the development of co-created intervention components to tackle non-adherence problems. Therefore, the aim of this project is two-fold. First, the 24-hour movement behaviors of OwOb individuals compared with normal weight individuals will be investigated. The individuals’ 24-hour movement behaviors will be associated with explanatory variables and cardiometabolic markers. Then, an intervention will be created by the participants, based on a co-creational approach. Both the co-creational approach as the co-created pilot intervention study will be evaluated for feasibility.