Individual and work-related risk factors associated with symptoms of musculoskeletal complaints

  • R. H. Westgaard
  • C. Jensen
  • K. Hansen
Original articles


Individual and work-related risk factors in the development of occupational musculoskeletal complaints were investigated in a cross-sectional study of 52 female production workers and 34 female office workers. The work tasks of the production workers were considered to generate shoulder muscle loads of low amplitude and high repetitiveness, and the work tasks of the office workers, muscle loads of low amplitude and low repetitiveness. The symptom scores were similar in the two groups, with the highest score for both groups in the shoulder-neck region. Previous pain symptoms were an important risk factor for musculoskeletal pain in all body regions, whereas psychosocial problems at work were a risk factor for complaints in the shoulder-neck region. For the office workers, 27% of the variance in shoulder-neck symptoms was explained by the variance in the parameters “previous pain symptoms” and “psychosocial problems” in a multilinear regression model. In three groups of workers with different physical loads on the shoulder muscles the symptom scores for workers without previous pain symptoms and psychosocial problems were related to the physical load. For workers with previous pain symptoms and psychosocial problems, the symptom scores were high and similar for all three groups.

Key words

Musculoskeletal complaints Risk factors Repetitive work tasks Static loads 


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  1. Ahles TA, Yunus MB, Riley SD, Bradley JM, Masi AT (1984) Psychological factors associated with primary fibromyalgia syndrome. Arthritis Rheum 27:1101–1106Google Scholar
  2. Biering-Sørensen F, Thomsen C (1986) Medical, social and occupational history as risk indicators for low-back trouble in a general population. Spine 11:720–725Google Scholar
  3. Biering-Sørensen F, Thomsen CE, Hilden J (1989) Risk indicators for low back trouble. Scand J Rehabil Med 21:151–157Google Scholar
  4. Hagberg M, Wegman DH (1987) Prevalence rates and odds ratios of shoulder-neck diseases in different occupational groups. Br J Ind Med 44:602–610Google Scholar
  5. Henriksson KG (1988) Muscle pain in neuromuscular disorders and primary fibromyalgia. Eur J Appl Physiol 57:348–352Google Scholar
  6. Jensen C, Nilsen K, Hansen K, Westgaard RH (1993) Trapezius muscle load as a risk indicator for occupational shoulder-neck complaints. Int Arch Occup Environ Health 64:415–423Google Scholar
  7. Kamwendo K, Linton SJ, Moritz U (1991) Neck and shoulder disorders in medical secretaries. Scand J Rehabil Med 23:127–133Google Scholar
  8. Karasek R, Theorell T (1990) Healthy work: stress, productivity, and the reconstruction of working life. Basic Books, New York, pp 1–82Google Scholar
  9. Larsson S-E, Bengtsson A, Bodegård L, Henriksson KG, Larsson J (1988) Muscle changes in work related chronic myalgia. Acta Orthop Scand 59:552–556Google Scholar
  10. Larsson S-E, Bodegård L, Henriksson KG, Öberg PÅ (1990) Chronic trapezius myalgia. Morphology and blood flow studied in 17 patients. Acta Orthop Scand 61:394–398Google Scholar
  11. Linton SJ, Kamwendo K (1988) Risk factors in the psychosocial work environment for neck and shoulder pain in secretaries. J Occup Med 31:609–613Google Scholar
  12. Payne TC, Leavitt F, Garron DC, Katz RS, Golden HE, Glickman PB, Vanderplate C (1982) Fibrositis and psychological disturbance. Arthritis Rheum 25:213–217Google Scholar
  13. Riihimäki H (1991) Low-back pain, its origin and risk indicators. Scand J Work Environ Health 17:81–90Google Scholar
  14. Veiersted KB, Westgaard RH (submitted) A longitudinal study of occupational risk factors for trapezius myalgia.Google Scholar
  15. Veiersted KB, Westgaard RH, Andersen P (1990) Pattern of muscle activity during stereotyped work and its relation to muscle pain. Int Arch Occup Environ Health 62:31–41Google Scholar
  16. Westgaard RH, Bjørklund R (1987) Generation of muscle tension additional to postural muscle load. Ergonomics 30:911–923Google Scholar
  17. Westgaard RH, Jansen T (1992a) Individual and work related factors associated with symptoms of musculoskeletal complaints. I. A quantitative registration system. Br J Ind Med 49:147–153Google Scholar
  18. Westgaard RH, Jansen T (1992b) Individual and work related factors assoiciated with symptoms of musculoskeletal complaints. II. Different risk factors among sewing machine operators. Br J Ind Med 49:154–162Google Scholar
  19. Westgaard RH, Wærsted M, Jansen T, Aarås A (1986) Muscle load and illness associated with constrained body postures. In: Corlett EN, Wilson J, Manenica I (eds) The ergonomics of working postures. Taylor and Francis, London, pp 5–18Google Scholar
  20. Winkel J, Westgaard RH (1992) Occupational and individual risk factors for shoulder-neck complaints. Int J Ind Erg 10:79–104Google Scholar
  21. Wolfe F, Cathey MA, Kleinheksel SM, Amos SP, Hoffman RG, Young DY, Hawley DJ (1984) Psychological status in primary fibrositis and fibrositis associated with rheumatoid arthritis. J Rheumatol 11:500–506Google Scholar
  22. Wærsted M, Westgaard RH (1991) Working hours as a risk factor in the development of musculoskeletal complaints. Ergonomics 34:265–276Google Scholar

Copyright information

© Springer-Verlag 1993

Authors and Affiliations

  • R. H. Westgaard
    • 1
  • C. Jensen
    • 1
  • K. Hansen
    • 1
  1. 1.Division of Organization and Work ScienceThe Norwegian Institute of TechnologyTrondheimNorway

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