Shoulder pain among male industrial workers: Validation of a conceptual model in two independent French working populations
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This study aims to validate a conceptual model for shoulder pain risk factors in two independent samples of male industrial workers: the Cosali cohort (n = 334) and one pharmaceutical company (n = 487). Direct and indirect relationships between work organization factors (automatic speed of a machine or movement of a product and work pace dependent on customers' demand), psychosocial factors (Job strain model), biomechanical factors (working with abducted arms, working with arms at or above shoulder level, and perceived physical exertion), perceived stress, and shoulder pain were explored using structural equation models. Shoulder pain was positively associated with biomechanical exposure in both samples, and with perceived stress only in the pharmaceutical preparation manufacturer, while factors related to work organization and psychosocial factors had indirect impacts on the risk of chronic shoulder pain in both samples. The results provide a deeper understanding of the complex relationships between workplace risk factors and shoulder pain.
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Inadequate postures, repetitive movements, excessive physical load, and inappropriate workstation design contribute to musculoskeletal pain, fatigue, and injuries, especially in back, shoulders, and extremities.
“Entre los principales problemas ergonómicos se encuentran las posturas inadecuadas, los movimientos repetitivos, la carga física excesiva y el diseño inapropiado de los puestos de trabajo, que contribuyen a dolores musculoesqueléticos, fatiga y lesiones, especialmente en áreas como la espalda, los hombros y las extremidades [9], [30], [31].”
From Impact of ergonomics on work performance in the manufacturing industry: A systematic review (2025) · cites this paper as [31]
The Introduction (page not provided in our copy) associates repetitive work, forceful exertion, and awkward arm postures with shoulder pain. It does not support the broader claims about inappropriate workstation design or pain, fatigue, and injuries in the back and extremities. (LLM, conf=0.88)
Experimental — accuracy not yet measuredPsychosocial and organizational factors, such as stress and work demands, also impact productivity and well-being.
“es fundamental considerar factores psicosociales y organizacionales, como el estrés y las demandas laborales, que también impactan la productividad y el bienestar [21], [31].”
From Impact of ergonomics on work performance in the manufacturing industry: A systematic review (2025) · cites this paper as [31]
The Discussion reports that psychological demands were associated with perceived stress and that psychosocial factors influenced shoulder pain through stress. The paper does not report an effect on productivity, and its health outcome is specifically shoulder pain among male industrial workers rather than well-being generally. Page numbers were not available in our copy. (LLM, conf=0.86)
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Impact of ergonomics on work performance in the manufacturing industry: A systematic review
Campos-Naval, J. E., Castañeda-López, V. A., & Aparicio-Ballena, J. A. (2025) · Proceedings of the 23rd LACCEI International Multi-Conference for Engineering, Education and Technology (LACCEI): "Engineering, Artificial Intelligence, and Sustainable Technologies in service of society" · doi:10.18687/laccei2025.1.1.802
- Authors
- Bodin, J., Garlantézec, R., Costet, N., Descatha, A., Viel, J.-F., & Roquelaure, Y.
- Affiliations
- Inserm (FR)
- Corresponding author
- Bodin, Julie
- ORCID
- Venue
- Applied Ergonomics
- Publisher
- Elsevier BV
- Published
- 2020-05
- Volume
- 85
- Pages
- 103075
- ISSN
- 0003-6870 (ISSN-L)
- OpenAlex
- W3005869953
- Cited by
- 35
- References
- 0
- Citations by year
- 2026: 1 · 2025: 1 · 2024: 11 · 2023: 7 · 2022: 9 · 2021: 6
- FWCI
- 6.01
- Type
- journal article
- Language
- en
- Open access
- hybrid
- doi.org
- Licence
- Locations
- Applied Ergonomics (publishedVersion, cc-by-nc-nd)
- PubMed (publishedVersion)
- HAL (submittedVersion, cc-by-nc-nd)
- Funders
- Public Health Agency (9/25/2002-5)
- French National Research Program (EST-2016/1/42)
- Topics
- Social Sciences › Psychology › Social Psychology › Ergonomics and Musculoskeletal Disorders
- Health Sciences › Health Professions › General Health Professions › Workplace Health and Well-being
- Health Sciences › Health Professions › Occupational Therapy › Occupational Health and Safety in Workplaces
- Keywords
- shoulder pain, chronic shoulder pain, industrial workers, male workers, conceptual model validation, work organization, psychosocial risk factors, job strain, biomechanical risk factors, arm abduction, perceived stress, machine speed, pharmaceutical manufacturing
- MeSH terms
- Adult, Arm, Biomechanical Phenomena, Cross-Sectional Studies, Drug Industry, Female, France, Humans, Ergonomics, Industry, Male, Man-Machine Systems, Middle Aged, Models, Theoretical, Occupational Diseases, Predictive Value of Tests, Work, Reproducibility of Results, Workplace, Risk Assessment, Shoulder Pain, Young Adult
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