A systematic review and meta-analysis of workplace intervention strategies to reduce sedentary time in white-collar workers

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Abstract

Prolonged sedentary behaviour has been associated with various detrimental health risks. Workplace sitting is particularly important, providing it occupies majority of total daily sedentary behaviour among desk-based employees. The aim of this systematic review and meta-analysis was to examine the effectiveness of workplace interventions overall, and according to different intervention strategies (educational/behavioural, environmental and multi-component interventions) for reducing sitting among white-collar working adults. Articles published through December 2015 were identified in five online databases and manual searches. Twenty-six controlled intervention studies published between 2003 and 2015 of 4568 working adults were included. All 26 studies were presented qualitatively, and 21 studies with a control group without any intervention were included in the meta-analysis. The pooled intervention effect showed a significant workplace sitting reduction of −39.6 min/8-h workday (95% confidence interval [CI]: −51.7, −27.5), favouring the intervention group. Multi-component interventions reported the greatest workplace sitting reduction (−88.8 min/8-h workday; 95% CI: −132.7, −44.9), followed by environmental (−72.8 min/8-h workday; 95% CI: −104.9, −40.6) and educational/behavioural strategies −15.5 min/8-h workday (95% CI:−22.9,−8.2). Our study found consistent evidence for intervention effectiveness in reducing workplace sitting, particularly for multi-component and environmental strategies. Methodologically rigorous studies using standardized and objectively determined outcomes are warranted. © 2016 World Obesity

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