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Efficacy of a Multicomponent Intervention to Reduce Workplace Sitting Time in Office Workers: A Cluster Randomized Controlled Trial

Maylor, Benjamin D., MSc; Edwardson, Charlotte L., PhD; Zakrzewski-Fruer, Julia K., PhD; Champion, Rachael B., BSc; Bailey, Daniel P., PhD

Journal of Occupational and Environmental Medicine: September 2018 - Volume 60 - Issue 9 - p 787–795
doi: 10.1097/JOM.0000000000001366

Objective: The aim of this study was to investigate the efficacy of a work-based multicomponent intervention to reduce office workers’ sitting time.

Methods: Offices (n = 12; 89 workers) were randomized into an 8-week intervention (n = 48) incorporating organizational, individual, and environmental elements or control arm. Sitting time, physical activity, and cardiometabolic health were measured at baseline and after the intervention.

Results: Linear mixed modelling revealed no significant change in workplace sitting time, but changes in workplace prolonged sitting time (-39 min/shift), sit-upright transitions (7.8 per shift), and stepping time (12 min/shift) at follow-up were observed, in favor of the intervention group (P < 0.001). Results for cardiometabolic health markers were mixed.

Conclusion: This short multicomponent workplace intervention was successful in reducing prolonged sitting and increasing physical activity in the workplace, although total sitting time was not reduced and the impact on cardiometabolic health was minimal.

Institute for Sport and Physical Activity Research, School of Sport Science and Physical Activity, University of Bedfordshire, Bedford, UK (Mr Maylor, Dr Zakrzewski-Fruer, Ms Champion, Dr Bailey); Leicester Diabetes Research Centre, University of Leicester, Leicester, UK (Dr Edwardson); The NIHR Leicester Loughborough Diet, Lifestyle and Physical Activity Biomedical Research Unit, Leicester and Loughborough, UK (Dr Edwardson).

Address correspondence to: Daniel P. Bailey, PhD, Institute for Sport and Physical Activity Research, School of Sport Science and Physical Activity, University of Bedfordshire, Polhill Avenue, Bedford, Bedfordshire MK41 9EA, UK (

The research was supported by the National Institute for Health Research (NIHR) Leicester Biomedical Research Centre, which is a partnership between University Hospitals of Leicester NHS Trust, Loughborough University, and the University of Leicester. The views expressed are those of the authors and not necessarily those of the NHS, the NIHR, or the Department of Health.

Beat the Seat Ltd paid a consultancy fee to the Institute for Sport and Physical Activity Research at the University of Bedfordshire to conduct an evaluation of the intervention reported in this manuscript but had no involvement in data analysis or manuscript writing.

Authors Bailey, Maylor, Edwardson, Zakrzewski-Fruer, and Champion have no relationships/conditions/circumstances that present potential conflict of interest.

The JOEM editorial board and planners have no financial interest related to this research.

Supplemental digital contents are available for this article. Direct URL citation appears in the printed text and is provided in the HTML and PDF versions of this article on the journal's Web site (

Copyright © 2018 by the American College of Occupational and Environmental Medicine