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This study focused on developing a new approach to seated work positions as conducted on 67 office workers who use a Visual Display Terminal (VDT) as a major function of their working day. Muscle tension was measured by surface electromyography (sEMG) while participants were asked to adopt 4 selected working postures. Pain was measured before and after ergonomic intervention on the Nordic scale, which was modified for this study. Adjustable workstations were used to place participants in desired positions during the clinical testing sessions and the extended intervention period. Results indicate the effects of this ergonomic intervention may have positive effects on muscle tension and pain, significant enough to encourage employers to implement training and workstation modifications following these guidelines.
Wydawca
Rocznik
Tom
Strony
61--78
Opis fizyczny
Bibliogr. 21 poz., rys., tab., wykr.
Twórcy
autor
- Situs, Inc., USA
autor
- University of Alaska, Anchorage, USA
autor
- University of Alaska, Anchorage, USA
autor
- Situs, Inc., USA
Bibliografia
- 1.American national standard for human factors engineering of Visual Display Terminal workstations (Standard No. ANSI/HFS 100-1988). (1988). Santa Monica, CA, USA: Human Factors Society.
- 2.American National Standards Institute (ANSI). (1988). Visual Display Terminal workstation guidelines. Santa Monica, CA, USA: Human Factors Society.
- 3.Bendix, T. (1984). Seated trunk postures at various seat inclinations, seat heights, and table heights. Human Factors, 26(6), 695-703.
- 4.Bridger, R.S. (1988). Postural adaptations to a sloping chair and work surface. Human Factors, 30(2), 237-247.
- 5.Corlett, E.N. (1983). Analysis and evaluation of working posture (pp. 1-18). In T.O. Kvålseth (Ed.), Ergonomics of workstation design. London, UK: Butterworths.
- 6.Dainoff, M.J. (1982). Occupational stress factors in visual display terminal (VDT) operation: A review of empirical research. Behavior and Information Technology, 1(2), 141-176.
- 7.Grandjean, E. (1988). Fitting the task to the man (4th ed.). Philadelphia, PA, USA: Taylor & Francis. 8.Haslegrave, C.M. (1994). What do we mean by a ‘‘working posture’’? Ergonomics, 37(4), 781-799.
- 9.Hedge, A., & Powers, J. (1995). Wrist postures while keyboarding: Effects of a negative slope keyboard system and full motion forearm supports. Ergonomics, 38(3), 508-517.
- 10.Jaschinski-Kruza, W. (1984). Transient myopia after visual work. Ergonomics, 27, 1181-1189.
- 11.Kasman, G.S., Cram, J.R., & Wolf, S.L. (1998). Clinical applications in surface electromyography: Chronic musculoskeletal pain. Galthersburg, MD, USA: Aspen Publications.
- 12.Kilbom, Å. (1994). Repetitive work of the upper extremity: Part 1-Guidelines for the practitioner. International Journal of Industrial Ergonomics, 14, 51-57.
- 13.Mandal, A.C. (1981). The seated man (Homo Sedans). Applied Ergonomics, 12(1), 19-26.
- 14.Mandal, A.C. (1984). Investigation of the lumbar flexion of office workers. Paper presented at Scandinavian and British Ergonomics Conference, 1985.
- 15.Noro, K. (1992) Construction of parametric model of operator and workstation. Ergonomics, 35(5-6), 661-676.
- 16.Sauter, S.L., Schliefer, L.M., & Knutson, S.J. (1991). Work posture, workstation design and musculoskeletal discomfort in a VDT data entry task. Human Factors, 33(2), 151-167.
- 17.Schuldt, K. (1988). On neck muscle activity and load reduction in sitting postures. Scandinavian Journal of Rehabilitation Medicine, 19, 18-47.
- 18.Stack, B. (1987). Repetitive strain injury: Prevention and rehabilitation. Hobart, Tasmania, Australia: Tasmania State Department of Health Services.
- 19.Taylor, W. (1994). Surface EMG and biofeedback. Bridgeport, ME, USA: Stens Corporation.
- 20.Verbeek, J. (1991). The use of adjustable furniture: Evaluation of an instruction programme for office workers. Applied Ergonomics, 22(3), 179-184.
- 21.Winkel, J., & Westgaard, R. (1992). Occupational and individual risk factors for shoulder-neck complaints: Part 1: Guidelines for the practitioner. International Journal of Industrial Ergonomics, 10, 79–83.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-4a40627b-cdd9-4bb3-a983-4ceebd7cd682