An intervention to reduce sitting and increase light-intensity physical activity at work: Design and rationale of the 'Stand & Move at Work' group randomized trial

Contemp Clin Trials. 2017 Feb;53:11-19. doi: 10.1016/j.cct.2016.12.008. Epub 2016 Dec 7.


Background: American workers spend 70-80% of their time at work being sedentary. Traditional approaches to increase moderate-vigorous physical activity (MVPA) may be perceived to be harmful to productivity. Approaches that target reductions in sedentary behavior and/or increases in standing or light-intensity physical activity [LPA] may not interfere with productivity and may be more feasible to achieve through small changes accumulated throughout the workday METHODS/DESIGN: This group randomized trial (i.e., cluster randomized trial) will test the relative efficacy of two sedentary behavior focused interventions in 24 worksites across two states (N=720 workers). The MOVE+ intervention is a multilevel individual, social, environmental, and organizational intervention targeting increases in light-intensity physical activity in the workplace. The STAND+ intervention is the MOVE+ intervention with the addition of the installation and use of sit-stand workstations to reduce sedentary behavior and enhance light-intensity physical activity opportunities. Our primary outcome will be objectively-measured changes in sedentary behavior and light-intensity physical activity over 12months, with additional process measures at 3months and longer-term sustainability outcomes at 24months. Our secondary outcomes will be a clustered cardiometabolic risk score (comprised of fasting glucose, insulin, triglycerides, HDL-cholesterol, and blood pressure), workplace productivity, and job satisfaction DISCUSSION: This study will determine the efficacy of a multi-level workplace intervention (including the use of a sit-stand workstation) to reduce sedentary behavior and increase LPA and concomitant impact on cardiometabolic health, workplace productivity, and satisfaction.

Trial registration: Identifier: NCT02566317 (date of registration: 10/1/2015).

Keywords: Cardiometabolic health; Cluster randomized trial; Physical activity; Sedentary behavior; Sit-stand workstations; Workplace.

Publication types

  • Randomized Controlled Trial

MeSH terms

  • Accelerometry
  • Blood Glucose / metabolism
  • Blood Pressure
  • Cholesterol, HDL / metabolism
  • Efficiency
  • Environment Design
  • Exercise*
  • Humans
  • Insulin / metabolism
  • Interior Design and Furnishings
  • Job Satisfaction
  • Posture*
  • Sedentary Behavior*
  • Triglycerides / metabolism
  • Workplace*


  • Blood Glucose
  • Cholesterol, HDL
  • Insulin
  • Triglycerides

Associated data