<qa>  What is the potential for dissemination of the MVPA?With traditional approaches to increasing MVPA moderate to vigorous physical activity in the workplace being unsustainable due to the requirement of deliberate and dedicated time away from work, this group-randomized trial will test the efficacy of sit-stand workstations on decreasing sitting time and increasing light-intensity physical activity LPA in a highly generalizable sample of office worksites using a multi-level intervention with high potential for dissemination. 