title: A cross-country comparison of short- and long-term effects of an ergonomic intervention on musculoskeletal discomfort, eyestrain and psychosocial stress in VDT operators: selected aspects of the international project.
abstract: Three groups of data entry female visual display terminal (VDT) workers from Norway (n = 30), Poland (n = 33) and the USA (n = 29) were compared. Before intervention, the Norwegian group reported more neck pain compared with the Polish group. The Polish group reported less shoulder pain than both the U.S. and the Norwegian groups. The clinical examination documented fewer symptoms and signs of musculoskeletal illness among the Polish participants compared with the Norwegian and the U.S. groups. After intervention, the Norwegian group reported a reduction in neck pain while the U.S. group reported a reduction in shoulder pain. The Polish group reported an increase in neck, shoulder and forearm pain at follow-up compared to after intervention. The Polish group recorded higher flexion of the upper arm at follow-up parallel with an increase of pain in the upper part of the body. Visual discomfort showed variable results in the 3 countries.
authors.affiliation: Department of Optometry and Visual Science, Buskerud University College, Kongsberg, Norway. gunnar.horgen@hibu.no
authors.forename: Gunnar
authors.initials: G
authors.lastname: Horgen
authors.forename: Arne
authors.initials: A
authors.lastname: Aarås
authors.forename: Marvin J
authors.initials: MJ
authors.lastname: Dainoff
authors.forename: Maria
authors.initials: M
authors.lastname: Konarska
authors.forename: Magne
authors.initials: M
authors.lastname: Thoresen
authors.forename: Barbara G F
authors.initials: BG
authors.lastname: Cohen
mesh_terms: D000328:Adult; D016288:Computer Terminals; D004576:Electromyography / Q000295:instrumentation / Q000379:methods; D006804:Ergonomics / Q000295:instrumentation / Q000379:methods*; D005260:Female; D006801:Humans; D007391:International Cooperation; D008875:Middle Aged; D009140:Musculoskeletal Diseases / Q000175:diagnosis / Q000209:etiology* / Q000517:prevention & control* / Q000523:psychology; D009664:Norway; D009784:Occupational Diseases / Q000175:diagnosis / Q000209:etiology / Q000517:prevention & control / Q000523:psychology; D009907:Optometry / Q000379:methods; D010146:Pain / Q000175:diagnosis / Q000209:etiology / Q000517:prevention & control / Q000523:psychology; D010808:Physical Examination / Q000379:methods; D011044:Poland; D011187:Posture; D012959:Socioeconomic Factors; D016896:Treatment Outcome; D014481:United States; D014786:Vision Disorders / Q000175:diagnosis / Q000209:etiology* / Q000517:prevention & control* / Q000523:psychology