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

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

Author information

1
Division of Health Policy & Management, School of Public Health, University of Minnesota, Minneapolis, MN 55455, USA. dutta.nirjhar@gmail.com.
2
Endocrine Research Unit, Mayo Clinic, Rochester, MN 55905, USA. koepp.gabriel@mayo.edu.
3
Family Medicine and Community Health, Medical School, University of Minnesota, Minneapolis, MN 55455, USA. stovitz@umn.edu.
4
Endocrine Research Unit, Mayo Clinic, Rochester, MN 55905, USA. levine.james@mayo.edu.
5
Division of Epidemiology & Community Health, School of Public Health, University of Minnesota, Minneapolis, MN 55454, USA. map@umn.edu.

Abstract

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.

PMID:
24968210
PMCID:
PMC4113835
DOI:
10.3390/ijerph110706653
[Indexed for MEDLINE]
Free PMC Article
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