Effectiveness of workplace interventions for reducing occupational sedentary behaviour: an update of a Cochrane systematic review
ISPAH ePoster Library. Pedisic Z. Oct 15, 2018; 225339; 445
Zeljko Pedisic
Zeljko Pedisic
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Abstract
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Abstract Introduction/Background: Reducing and breaking up occupational sitting time may positively affect health. No recent reviews have summarised results of studies on the effectiveness of interventions to reduce occupational sedentary behaviour. We aimed to evaluate the effects of workplace interventions on reducing sitting at work compared to no intervention or alternative interventions. Method: We conducted systematic searches of six electronic databases and two trial registries. We included RCTs, cluster RCTs, and controlled before-and-after studies (CBA). Two authors independently screened studies for eligibility and performed data extraction and risk of bias assessment. Results:<\b>
We included 34 studies, including 19 RCTs, seven cluster RCTs, and eight CBAs. We found low quality evidence suggesting that using sit-stand desks reduces occupational sitting time by on average 100 minutes/day (95% CI: -115 to -84) in the short term (up to 3 months after the intervention) and 57 minutes/day (95% CI: -99 to -15) in the medium term (3 to 12 months). We also found low quality evidence that counselling may lead to a modest reduction in occupational sitting time in the medium-term (pooled mean difference -28 minutes/day; 95% CI: -51 to -5). Evidence on the effects of policy changes, providing information, and counselling on sitting time at work was inconsistent. Conclusion:<\b>
Low quality evidence suggests that using sit-stand desks may result in small-to-moderate reductions in occupational sitting time in the short or medium term, but there is no evidence for long-term effects. More studies are needed on the effectiveness of the other types of workplace interventions.
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