OBJECTIVE: To determine the effectiveness of workplace exercise interventions in the treatment of musculoskeletal disorders. DESIGN: Systematic review of randomised controlled trials (RCTs). DATA SOURCES: The bibliographical databases PubMed, CINAHL Plus, Cochrane, Scopus, ISI WoS and PEDro were searched, with studies from 1 January 2010 to 31 December 2020 eligible for inclusion. ELIGIBILITY CRITERIA: We included RCTs, reported in English or Spanish, with at least an intervention group performing workplace exercises among office workers with musculoskeletal disorders. DATA EXTRACTION AND SYNTHESIS: Two independent reviewers extracted data and assessed the risk of bias. A narrative synthesis was carried out with a tabular method specifying the study characteristics following the SWiM (Synthesis Without Meta-Analysis) guideline for synthesis without meta-analysis. The revised Cochrane risk of bias (RoB-2) tool was used to analyse the risk of bias of the included studies. RESULTS: Seven studies with a total of 967 participants met the inclusion criteria and were included in this review. Due to heterogeneity in different workplace exercise interventions, outcome measures and statistical analyses, it was not possible to conduct a meta-analysis and a narrative synthesis was performed. The interventions were classified into three categories: multiple body regions, neck and shoulder, and lower back. The seven studies concluded that workplace exercise interventions were effective in reducing musculoskeletal disorders and pain compared with other types of interventions or with control groups with no interventions. The RoB-2 tool found a high risk of bias in six of the seven studies. CONCLUSIONS: The findings of the RCTs on workplace exercise interventions suggest that interventions were effective in treating musculoskeletal disorders among office workers. However, due to the high risk of bias of the included studies, no firm conclusions could be drawn and more high-quality studies are needed. PROSPERO REGISTRATION NUMBER: CRD42020177462.
Reproduced with permission from the BMJ Publishing Group.

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