The Influence of Occupational and Non-Occupational Factors on the Prevalence of Musculoskeletal Complaints in Users of Portable Computers

• Autorzy: Malińska M. , Bugajska J.
• Języki publikacji: EN

Abstrakty

EN

Introduction. Portable computers are becoming an increasingly common main work tool; however, they are not properly adapted to the workstation. Musculoskeletal complaints are a very frequent complaint reported by workers who use computers in their work. Aim. The aim of the study was to assess the prevalence and intensity of pain in the musculoskeletal system in workers who regularly use a portable computer in their work and to determine the influence of working conditions and duration of work with a portable computer. Material and methods. The study covered 300 workers. Musculoskeletal complaints were assessed with the Nordic musculoskeletal questionnaire complemented with a visual analogue scale. Working conditions was assessed with a questionnaire developed as part of the study. Results and conclusions. The most prevalent faults in the organization of workstations were lack of a computer desk with an adjustable keyboard tray/drawer, no adjustment of chair armrests and no possibility to use an additional keyboard. The most frequent complaints among computer operators were headaches, low-back pain and neck pain. The use of an additional keyboard reduced the intensity of shoulder pain.

Słowa kluczowe

EN

musculoskeletal complaints; portable computer; working conditions

• Wydawca: Taylor & Francis
• Czasopismo: International Journal of Occupational Safety and Ergonomics
• Rocznik: 2010
• Tom: Vol. 16, No. 3
• Strony: 337--343
• Opis fizyczny: Bibliogr. 32 poz., tab.

Twórcy

autor

Malińska M.

• Central Institute for Labour Protection – National Research Institute (CIOP-PIB), Poland

autor

Bugajska J.

• Central Institute for Labour Protection – National Research Institute (CIOP-PIB), Poland

Bibliografia

• 1.Bergqvist U, Wolgast E, Nilsson B, Voss M. Musculoskeletal disorders among visual display terminal workers: individual, ergonomic and work organizational factors. Ergonomics. 1995;38(4):763–76.
• 2.Knave GG, Wibom RI, Hedstrom LD, Bergqvist UO. Work with video display terminals among office employees. I. Subjective symptoms and discomfort. Scan J Work Environ Health. 1985;11:457–66.
• 3.Ong CN, Cia SE, Jeyaratnam J, Tan KC. Musculoskeletal disorders among operators of visual display terminals. Scan J Work Environ Health. 1995;21:60–4.
• 4.Woods V. Musculoskeletal disorders and visual strain in intensive data processing workers. Occup Med (Lond). 2005;55:121–7.
• 5.Wahlstrom J. Ergonomics, musculoskeletal disorders and computer work. Occup Med (Lond). 2005;55:168–76.
• 6.Thomsen JF, Gerr F, Atrishi I. Carpal tunnel syndrome and the use of computer mouse and keyboard: a systematic review. BMC Musculoskelet Disord. 2008;9:134–9.
• 7.Grandjean E. Ergonomics in computerized offices. London, UK: Taylor & Francis; 1987.
• 8.Bergqvist UO. Video display terminals and health. A technical and medical appraisal of the state of the art. Scan J Work Environ Health. 1984;10 Suppl 2:1–87.
• 9.Bugajska J, editor. Komputerowe stanowisko pracy; aspekty zdrowotne i ergonomiczne [A computer workstation; health and ergonomics aspects]. 3rd ed. Warszawa, Poland: CIOP-PIB; 2003.
• 10.Mieszkowska M, Bugajska J, Wolska A. Working with a laptop. Bezpieczeństwo Pracy. 2008;(12):8–10. In Polish, with an abstract in English.
• 11.Kuorinka I, Jonsson B, Kilbom A, Vinterberg H, Biering-Sørensen F, Andersson G. Jørgensen K. Standardised Nordic questionnaires for the analysis of musculoskeletal symptoms. Appl Ergon. 1987;18(3):233–7.
• 12.European Agency for Health and Safety at Work. Work-related musculoskeletal disorders: back to work report. Luxembourg: Office for Official Publications of the European Communities; 2007.
• 13.Jóźwiak Z. Ergonomia stanowiska komputerowego. Ergotest 2007 [Ergonomics of a computer workstation. Ergotest 2007] [unpublished report]. Retrieved May 18, 2010, from: http://www.ergotest.pl/download/raport_ergotest_2007.doc.
• 14.Saito S, Miyao M, Kondo T. Ergonomic evaluation of working posture of VDT operation using personal computer with flat panel display. Ind Health. 1997;35:264–70.
• 15.Villanueva MB, Jonai H, Saito S. Ergonomic aspects of portable personal computers with flat panel displays (PC-FPDs): evaluation of posture, muscle activities, discomfort and performance. Ind Health. 1998;36(3):282–9.
• 16.Mosffet H, Hagberg M, Hansson-Risberg E, Karlqvist L. Influence of laptop computer design and working position on physical exposure variables. Clin Biomech (Bristol, Avon). 2002;17:368–75.
• 17.Viikari-Juntura E, Silverstein B. Role of physical load factors in carpal tunnel syndrome. Scand J Work Environ Health. 1999;25;163–85.
• 18.Malchaire JB, Cock NA, Robert AR. Prevalence of musculoskeletal disorders at the wrist as a function of angles, forces, repetitiveness and movement velocities. Scand J Work Environ Health. 1996;22:176–81.
• 19.Liu CW, Chen TW, Wang MC, Chen CH, Lee CL, Huang MH. Relationship between carpal tunnel syndrome and wrist angle in computer workers. Kaohsiung J Med Sci. 2003;19:617–23.
• 20.Liao MH, Drury CG. Posture, discomfort and performance in VDT task. Ergonomics. 2000;43:345–59.
• 21.Fries Svensson H, Svensson OK. The Influence of the viewing angle on neckload during work with video display units. J Rehabil Med. 2001;33:133–6.
• 22.Korhonen T, Ketola R, Toivonen R, Luukkonen R, Hakkanen M, Viikari-Juntura E. Work related and individual predictors for incident neck pain among office employees working with video display units. Occup Environ Med. 2003;60:475–82.
• 23.Yoo WG, Yi CH, Kim MH. Effects of proximity-sensing feedback chair on head, shoulder, and trunk postures when working at visual display terminal. J Occup Rehabil. 2006;16:631–7.
• 24.Szeto GP, Straker LM, O’Sullivan PB. A comparison of symptomatic and asymptomatic office workers performing monotonous keyboard work—2: neck and shoulder kinematics. Man Ther. 2005;10:281–91.
• 25.Alix ME, Bates DK. A proposed etiology of cervicogenic headache: the neurophysiologic basis and anatomic relationship between the mater and the rectus posterior capitis minor muscle. J Manipulative Physiol Ther. 1999;22:534–9.
• 26.Karlqvist L, Wigaeus Tornqvist E, Hagberg M, Hagman M, Toomingas A. Self-reported working conditions of VDU operators and associations with musculoskeletal symptoms: a cross-sectional study focusing on gender differences. Int J Ind Ergonomics. 2002;30:277–94.
• 27.Ekman A, Andersson A, Hagberg M, Hjelm EW. Gender differences in musculoskeletal health of computer and Mouse users in the Swedish workforce. Occup Med (Lond). 2000;50(8):608–13.
• 28.Punnett L, Bergqvist U. Visual display unit work and upper extremity musculoskeletal disorders. Stockholm, Sweden: National Institute for Working Life; 1997.
• 29.Tittiranonda P, Burastero S, Rempel D. Risk factors for musculoskeletal disorders among computer users. Occup Med. 1999;14:17–38.
• 30.Marcus M, Gerr F, Monteilh C, Ortiz DJ, Gentry E, Cohen S, et al. A prospective study of computer users: II. Postural risk factors for musculoskeletal symptoms and disorders. Am J Ind Med. 2002;41:236–49.
• 31.Jensen C. Development of neck and handwrist symptoms in relation to duration of computer use at work. Scand J Work Environ Health. 2003;29:197–205.
• 32.Kryger AI, Andersen H, Lassen CF, Brandt LP, Vilstrup I, Overgaard E, et al. Does computer use pose an occupational hazard for forearm pain; from the NUDATA study. Occup Environ Med 2003;60:e14.