Using sit-stand workstations to decrease sedentary time in office workers: a randomized crossover trial

Int J Environ Res Public Health. 2014 Jun 25;11(7):6653-65. doi: 10.3390/ijerph110706653.


Objective: This study was conducted to determine whether installation of sit-stand desks (SSDs) could lead to decreased sitting time during the workday among sedentary office workers.

Methods: A randomized cross-over trial was conducted from January to April, 2012 at a business in Minneapolis. 28 (nine men, 26 full-time) sedentary office workers took part in a 4 week intervention period which included the use of SSDs to gradually replace 50% of sitting time with standing during the workday. Physical activity was the primary outcome. Mood, energy level, fatigue, appetite, dietary intake, and productivity were explored as secondary outcomes.

Results: The intervention reduced sitting time at work by 21% (95% CI 18%-25%) and sedentary time by 4.8 min/work-hr (95% CI 4.1-5.4 min/work-hr). For a 40 h work-week, this translates into replacement of 8 h of sitting time with standing and sedentary time being reduced by 3.2 h. Activity level during non-work hours did not change. The intervention also increased overall sense of well-being, energy, decreased fatigue, had no impact on productivity, and reduced appetite and dietary intake. The workstations were popular with the participants.

Conclusion: The SSD intervention was successful in increasing work-time activity level, without changing activity level during non-work hours.

Publication types

  • Randomized Controlled Trial
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Affect
  • Appetite
  • Cross-Over Studies
  • Diet
  • Eating
  • Fatigue
  • Female
  • Humans
  • Interior Design and Furnishings*
  • Male
  • Motor Activity*
  • Occupational Health
  • Posture*
  • Sedentary Behavior
  • Workplace*