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Musculoskeletal, visual and psychosocial stress in VDU operators before and after multidisciplinary ergonomic interventions. A 6 years prospective study—Part II |
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| Authors: | Arne Aar s Gunnar Horgen Hans-Henrik Bj rset Ola Ro Heidi Wals e |
| Affiliation: | a Alcatel STK A/S, PO Box 60, Økern, N-0508 Oslo 5, Norway b Kongsberg College of Engineering, Department of Optometry, P.O. Box 235, 3601 Kongsberg, Norway c K. O. Thornesveg 11, 7033 Trondheim, Norway d Premed A/S, P.O. Box 275, Økern, 0511 Oslo, Norway e Parexel Medstat, P.O. Box 210, N-2001 Lillestrøm, Norway |
| Abstract: | A prospective epidemiological field study covering a 2 years period has earlier been published (Appl. Ergon. (1998) 29(5) 335). The study has a parallel group design with two intervention groups (T and S) and one control group (C) of Visual Display Unit (VDU) operators. The present paper covers the period from 2 to 6 years of the study. After 3.5 years, the C group got the same intervention in terms of new lighting system, new workplaces and at last an optometric examination and corrections if needed. The C group reported a significant reduction in visual discomfort after interventions while the two groups (T and S) continued to report significant reduction of visual discomfort after 6 years. By supporting the forearm on the table top, the C group reported significant reduction of shoulder and neck pain while the T group reported significant reduction in shoulder and back pain after 6 years. Organizational and psychosocial factors at work and outside work did not show any significant changes during the study period. |
| Keywords: | VDU workplaces Lighting conditions Visual conditions Visual discomfort Musculoskeletal illness |
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