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. 2003 Nov;60(11):e14. doi: 10.1136/oem.60.11.e14

Does computer use pose an occupational hazard for forearm pain; from the NUDATA study

A Kryger, J Andersen, C Lassen, L Brandt, I Vilstrup, E Overgaard, J Thomsen, S Mikkelsen
PMCID: PMC1740406  PMID: 14573725

Abstract

Methods: A total of 6943 participants with a wide range of computer use and work tasks were studied. At baseline and at one year follow up participants completed a questionnaire. Participants with relevant forearm symptoms were offered a clinical examination. Symptom cases and clinical cases were defined on the basis of self reported pain score and palpation tenderness in the muscles of the forearm.

Results: The seven days prevalence of moderate to severe forearm pain was 4.3%. Sixteen of 296 symptom cases met criteria for being a clinical forearm case, and 12 had signs of potential nerve entrapment. One year incidence of reported symptom cases was 1.3%; no subjects developed new signs of nerve entrapment. Increased risk of new forearm pain was associated with use of a mouse device for more than 30 hours per week, and with keyboard use more than 15 hours per week. High job demands and time pressure at baseline were risk factors for onset of forearm pain; women had a twofold increased risk of developing forearm pain. Self reported ergonomic workplace factors at baseline did not predict future forearm pain.

Conclusion: Intensive use of a mouse device, and to a lesser extent keyboard usage, were the main risk factors for forearm pain. The occurrence of clinical disorders was low, suggesting that computer use is not commonly associated with any severe occupational hazard to the forearm.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

  1. Gerr Fredric, Marcus Michele, Ensor Cindy, Kleinbaum David, Cohen Susan, Edwards Alicia, Gentry Eileen, Ortiz Daniel J., Monteilh Carolyn. A prospective study of computer users: I. Study design and incidence of musculoskeletal symptoms and disorders. Am J Ind Med. 2002 Apr;41(4):221–235. doi: 10.1002/ajim.10066. [DOI] [PubMed] [Google Scholar]
  2. Greening J., Lynn B. Vibration sense in the upper limb in patients with repetitive strain injury and a group of at-risk office workers. Int Arch Occup Environ Health. 1998 Feb;71(1):29–34. doi: 10.1007/s004200050246. [DOI] [PubMed] [Google Scholar]
  3. Greening J., Smart S., Leary R., Hall-Craggs M., O'Higgins P., Lynn B. Reduced movement of median nerve in carpal tunnel during wrist flexion in patients with non-specific arm pain. Lancet. 1999 Jul 17;354(9174):217–218. doi: 10.1016/s0140-6736(99)02958-x. [DOI] [PubMed] [Google Scholar]
  4. Harrington J. M., Carter J. T., Birrell L., Gompertz D. Surveillance case definitions for work related upper limb pain syndromes. Occup Environ Med. 1998 Apr;55(4):264–271. doi: 10.1136/oem.55.4.264. [DOI] [PMC free article] [PubMed] [Google Scholar]
  5. Homan Michelle M., Armstrong Thomas J. Evaluation of three methodologies for assessing work activity during computer use. AIHA J (Fairfax, Va) 2003 Jan-Feb;64(1):48–55. doi: 10.1080/15428110308984784. [DOI] [PubMed] [Google Scholar]
  6. Hudak P. L., Amadio P. C., Bombardier C. Development of an upper extremity outcome measure: the DASH (disabilities of the arm, shoulder and hand) [corrected]. The Upper Extremity Collaborative Group (UECG) Am J Ind Med. 1996 Jun;29(6):602–608. doi: 10.1002/(SICI)1097-0274(199606)29:6<602::AID-AJIM4>3.0.CO;2-L. [DOI] [PubMed] [Google Scholar]
  7. Jensen B. R., Pilegaard M., Momsen A. Vibrotactile sense and mechanical functional state of the arm and hand among computer users compared with a control group. Int Arch Occup Environ Health. 2002 Feb 19;75(5):332–340. doi: 10.1007/s00420-001-0301-5. [DOI] [PubMed] [Google Scholar]
  8. Macfarlane G. J., Hunt I. M., Silman A. J. Role of mechanical and psychosocial factors in the onset of forearm pain: prospective population based study. BMJ. 2000 Sep 16;321(7262):676–679. doi: 10.1136/bmj.321.7262.676. [DOI] [PMC free article] [PubMed] [Google Scholar]
  9. Marcus Michele, Gerr Fredric, Monteilh Carolyn, Ortiz Daniel J., Gentry Eileen, Cohen Susan, Edwards Alicia, Ensor Cindy, Kleinbaum David. A prospective study of computer users: II. Postural risk factors for musculoskeletal symptoms and disorders. Am J Ind Med. 2002 Apr;41(4):236–249. doi: 10.1002/ajim.10067. [DOI] [PubMed] [Google Scholar]
  10. Pritchard M. H., Pugh N., Wright I., Brownlee M. A vascular basis for repetitive strain injury. Rheumatology (Oxford) 1999 Jul;38(7):636–639. doi: 10.1093/rheumatology/38.7.636. [DOI] [PubMed] [Google Scholar]
  11. Rayan G. M. Compression neuropathies, including carpal tunnel syndrome. Clin Symp. 1997;49(2):2–32. [PubMed] [Google Scholar]
  12. Sharma S. D., Smith E. M., Hazleman B. L., Jenner J. R. Thermographic changes in keyboard operators with chronic forearm pain. BMJ. 1997 Jan 11;314(7074):118–118. doi: 10.1136/bmj.314.7074.118. [DOI] [PMC free article] [PubMed] [Google Scholar]
  13. Sluiter J. K., Rest K. M., Frings-Dresen M. H. Criteria document for evaluating the work-relatedness of upper-extremity musculoskeletal disorders. Scand J Work Environ Health. 2001;27 (Suppl 1):1–102. [PubMed] [Google Scholar]

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