ArticleBMC musculoskeletal disorders2022
Job-related stress associated with work-related upper extremity musculoskeletal disorders (UEMDs) in municipal waste collectors: the moderation and mediation effect of job support.
Article in BMC musculoskeletal disorders, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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4 citing papers in PubMed, 9 citations in OpenAlex.
- Ergonomic risk assessment in municipal waste management: integrating standardized methods with real-world context.Frontiers in public health · 2026Article
- Psychosocial work factors influencing health, safety, well-being and productivity of waste collectors in developing countries: a scoping review.BMC psychology · 2025Article
- Effects of psychosocial factors on Swedish waste collectors musculoskeletal pain through the mediating roles of occupational fatigue and physical demands: a structural equation model.BMC public health · 2025Article
- Magnitude and possible risk factors of musculoskeletal disorders among street cleaners and solid waste workers: a cross-sectional study.BMC musculoskeletal disorders · 2023Article
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5 authors at 3 institutions in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
backgroundSince the policy of "keeping trash off of the ground" in Taiwan, long-term exposure to repetitive motion in waste collection process results in high risk of upper extremity musculoskeletal disorders (UEMDs). Thus, we assessed the moderation and mediation effects of job-related stress and job support on work-related UEMDs among municipal waste collectors.
methodsA cross-sectional study was conducted in two cities located at northern Taiwan during 2018-2019. 626 municipal waste collectors voluntarily participated and anonymously filled out a structured questionnaire. The moderation and mediation effects of effort-reward imbalance (ERI) and social support on UEMDs were analyzed by Haye's Process Macro Model.
resultsPrevalence of UEMDs in municipal waste collectors were 43.4% for neck, 56.0% for shoulder, 24.1% for upper back, and 33.1% for hand/wrist. There was high prevalence of shoulder (72.2%), neck (48%), and upper back (30%) in female workers compared to male, most significantly in shoulders. In univariate and multivariate analysis, high ERI and low job support were significantly associated with ORs of 3.11 (95% CI:1.58-6.13) for elbow, 2.79 (95% CI:1.39-5.56) for shoulder, 3.39 (95% CI:1.64-7.00) for upper back and 3.83 (95% CI:1.98-7.41) for hand/wrist. Prevalent UEMDs were positively associated with high ERI in municipal waste collectors but negatively with job support. The moderation effects of ERI and job support on UEMDs, of which the measured synergy index exceeded one, were 18.24 for shoulder, 3.32 for elbow, and 2.45 for hand/wrist, but mediation effects were not significant.
conclusionsThis study found municipal waste collectors with work-related upper extremity disorders were significantly associated with work-related psychological risk factors. Therefore, waste collection cannot only to be improved by semi-automatic and automatic processes but immediate intervention programs for the reduction of psychological risk factors is needed promptly.
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