Move-It: A Cluster-randomised Digital Worksite Exercise Intervention in China: Outcome and Process Evaluation

The aim of the study is to evaluate the outcomes and processes of a video and web-based worksite exercise intervention for sedentary office workers in China.

The intervention is informed by behaviour change theory, and is a digital workplace intervention (called Move-It) involving a 10-minute Qigong exercise session (video demonstration via website) which is delivered twice a day at set break times during the working day for 12 consecutive weeks.

The setting is a large organisation with 2 sites (in Beijing and Guangzhou). The objectives are to examine the effect of a video-based intervention on employees' physical activity, time spent sitting and work performance. This is tested in a 2-group, randomised wait-list control trial. This means that employees at one site receive the intervention first (site 1 - intervention group), and when they have completed (12 weeks later), the other site then receives the same intervention (site 2 - wait-list control). At the end of the intervention, there is a process evaluation with the intervention group which includes focus groups with employees and managers to gather information about the way in which the intervention was implemented. The process evaluation is based on a framework called 'Reach Effectiveness Adoption Implementation Maintenance' (RE-AIM). Data were collected at baseline (before the intervention began) and after 12 weeks in both groups.