Work-Related Musculoskeletal Disorders and Occupational Exposures

Work-related musculoskeletal disorders (WMSDs) encompass a spectrum of inflammatory and degenerative conditions affecting muscles, tendons, ligaments, nerves and spinal structures. These disorders arise from a combination of biomechanical exposures – such as repetitive motions, forceful exertion, awkward postures and whole-body vibration – and psychosocial factors including high job demands, low control and insufficient social support. Globally, WMSDs remain a leading cause of disability, absenteeism and diminished quality of life, with incidence peaks in manufacturing, construction, agriculture and the service sector. Epidemiological studies reveal that low-back pain, shoulder disorders (including subacromial impingement and rotator cuff syndromes) and upper-limb tendinopathies account for the majority of cases. Risk profiles vary by gender, age and occupation, emphasising the need for gender-sensitive analyses and age-specific interventions. Integrated prevention strategies combine engineering controls, ergonomic redesign, administrative measures (job rotation, work–rest scheduling) and multi-disciplinary health programmes. Advances in exposure assessment, such as job exposure matrices, have refined our understanding of exposure–response relationships, enabling targeted risk reduction. The global burden underscores the imperative for whole-system approaches that bridge research, workplace practice and policy to preserve musculoskeletal health and sustain labour participation.

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Work-Related Musculoskeletal Disorders and Occupational Exposures publication trend

The graph below shows the total number of articles in work-related musculoskeletal disorders and occupational exposures across all publications each year (not limited to Nature Index journals).

Technical terms

Work-related musculoskeletal disorders (WMSDs): A range of inflammatory or degenerative conditions of muscles, joints, nerves and supporting structures caused or exacerbated by occupational exposures.

Biomechanical risk factors: Physical job demands such as forceful exertion, repetitive movements, awkward postures and vibration that increase musculoskeletal load.

Psychosocial risk factors: Organisational and social aspects of work (e.g. high job demands, low control, insufficient support) that influence the development or persistence of WMSDs.

Job exposure matrix (JEM): A structured tool assigning quantitative or qualitative exposure estimates to job titles, facilitating large-scale epidemiological exposure assessment.

Subacromial impingement syndrome (SIS): A shoulder condition characterised by compression of rotator cuff tendons beneath the acromion, leading to pain and limited mobility.

Rotator cuff syndrome (RCS): Pathology affecting the group of tendons stabilising the shoulder joint, often linked to repetitive overhead activity and biomechanical overload.

References

1. Prevalence of work-related musculoskeletal disorders among workers in the automobile manufacturing industry in China: a systematic review and meta-analysis. BMC Public Health (2023).
2. What have we learned about risk assessment and interventions to prevent work-related musculoskeletal disorders and support work participation?. Scandinavian Journal of Work, Environment & Health (2024).
3. Physical and psychosocial work-related exposures and the occurrence of disorders of the shoulder: A systematic review update. Applied Ergonomics (2024).
4. Development and Validation of a Job Exposure Matrix for Physical Risk Factors in Low Back Pain. PLOS ONE (2012).