The effectiveness of sit-stand workstations for changing office workers’ sitting time: results from the Stand@Work randomized controlled trial pilot

International Journal of Behavioral Nutrition and Physical Activity

Hidde P van der Ploeg⁴  Adrian E Bauman¹  Anna Do³  Anu Srinivasan²  Scott Dunn²  Michelle Daley²  Josephine Y Chau¹ 

[1] Prevention Research Collaboration, Sydney School of Public Health, University of Sydney, 92-94 Parramatta Road, Camperdown 2050, NSW, Australia;Heart Foundation New South Wales, 3/80 William St, Sydney 2011, NSW, Australia;Centre for Epidemiology and Evidence, New South Wales Ministry of Health, Locked Mail Bag 961, North Sydney 2059, NSW, Australia;Department of Public and Occupational Health, EMGO Institute for Health and Care Research, VU University Medical Center, Van der Boechorststraat 7, Amsterdam, 1081BT, The Netherlands

关键词: Randomized controlled trial;    Workplace;    Sit-stand workstation;    Sedentary behavior;   

Others  :  1136167
DOI  :  10.1186/s12966-014-0127-7

 received in 2014-02-24, accepted in 2014-10-01,  发布年份 2014

【 摘 要 】

Background

Prolonged sitting time is detrimental for health. Individuals with desk-based occupations tend to sit a great deal and sit-stand workstations have been identified as a potential strategy to reduce sitting time. Hence, the objective of the current study was to examine the effects of using sit-stand workstations on office workers’ sitting time at work and over the whole day.

Methods

We conducted a randomized controlled trial pilot with crossover design and waiting list control in Sydney, Australia from September 2011 to July 2012 (n = 42; 86% female; mean age 38 ± 11 years). Participants used a sit-stand workstation for four weeks in the intervention condition. In the time-matched control condition, participants received nothing and crossed over to the intervention condition after four weeks. The primary outcomes, sitting, standing and walking time at work, were assessed before and after using the workstations with ActivPALs and self-report questionnaires. Secondary outcomes, domain-specific sitting over the whole day, were assessed by self-report. Linear mixed models estimated changes in outcomes adjusting for measurement time, study grouping and covariates.

Results

Intervention participants significantly reduced objectively assessed time spent sitting at work by 73 min/workday (95% CI: −106,-39) and increased standing time at work by 65 min/workday (95% CI: 47, 83); these changes were significant relative to controls (p = 0.004 and p < 0.001, respectively). Total sitting time significantly declined in intervention participants (−80 min/workday; 95% CI: −155, −4).

Conclusions

This study shows that introducing sit-stand workstations in the office can reduce desk-based workers’ sitting time at work in the short term. Larger scale studies on more representative samples are needed to determine the public health impact of sit-stand workstations.

Trial registration

ACTRN12612000072819 webcite

【 授权许可】

   
2014 Chau et al.; licensee BioMed Central Ltd.

【 图 表 】

Figure 1.

Figure 2.

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