Optimizing Sedentary Behavior Interventions to Affect Acute Physiological Changes

Primary aim: To determine the acceptability and feasibility of selected personal, social and environmental strategies to reduce overall sitting time and increase the number of times participants stand up in a day. Secondary aim: To assess whether existing and new measurement approaches can detect specific changes in sedentary behavior. Exploratory aim: To establish whether specified intervention strategies were efficacious in reducing sedentary behavior and whether intervention effects were specific to the targeted sedentary behavior construct (e.g. decreased overall sitting time or increased number of breaks in sitting).