Most of the existing lifestyle interventions in adults with overweight or obesity focus on one movement behavior in isolation (i.e. moderate to vigorous physical activity (MVPA)). However, recent research suggests to incorporate all movement behaviors performed in one day to explore the possible synergistic health effects of targeting more than one behavior. Moreover, more optimal 24-hour movement behavior compositions are related with better cardiometabolic health. Literature shows that adults with obesity have less optimal 24-hour compositions (8-9). Therefore it would be of interest to discover the needs related to an optimal 24-hour movement behavior intervention for a group of adults with overweight and obesity using co-design to develop an intervention. This study will conduct a concept mapping protocol to explore the needs to of people with overweight and obesity to change their sedentary behavior into more physical activity as well to include the opinion of health care providers (HCP are physiotherapists) on the needs of their patients.