Musculoskeletal symptoms of the upper extremities and the neck: a cross-sectional study on prevalence and symptom-predicting factors at visual display terminal (VDT) workstations.

André Klussmann,Monika A Rieger,Falk Liebers,Hansjuergen Gebhardt

doi:10.1186/1471-2474-9-96

Abstract

BackgroundThe aim of this study was to determine the prevalence and the predictors of musculoskeletal symptoms in the upper extremities and neck at visual display terminal (VDT) workstations.MethodsIn a cross-sectional study 1,065 employees working at VDT > 1 h/d completed a standardised questionnaire. Workstation conditions were documented in a standardised checklist, and a subgroup of 82 employees underwent a physical examination.ResultsUsing the Nordic Questionnaire, the 12-month prevalence of symptoms of the neck, shoulder region, hand/wrist, or elbow/lower arm was 55%, 38%, 21%, and 15% respectively. The duration of VDT work had a significant impact on the frequency of neck symptoms in employees performing such work > 6 h/d.ConclusionWith regard to musculoskeletal symptoms of the upper extremities, preventive measures at VDT workstations should be focused on neck and shoulder symptoms (e.g. ergonomic measures, breaks to avoid sitting over long periods).

Highlights

The aim of this study was to determine the prevalence and the predictors of musculoskeletal symptoms in the upper extremities and neck at visual display terminal (VDT) workstations
As working conditions may play a major role for symptom prevalence, a cross sectional study was performed focussing on workstations representative of German conditions with regard to VDT workstations' ergonomics and tasks to be performed by the employees
The authors suppose that the participants of the present study indicated less symptoms as they were thinking mainly on work-related symptoms

Summary

Introduction

The aim of this study was to determine the prevalence and the predictors of musculoskeletal symptoms in the upper extremities and neck at visual display terminal (VDT) workstations. Musculoskeletal symptoms or disorders in the upper extremities and neck among employees working at visual display terminal (VDT) workstations has been a topic in occupational health research for many years. Controversial discussions are ongoing regarding the extent and etiology of the problem as well as the work-related causes and the risks leading to the symptoms – in particular the work at visual display terminal (VDT) workstations. Sorgatz [9] described a "neuroplastic RSI model" derived from observations and diagnoses According to this model, highly frequent repetitive movements cause micro lesions that accumulate in the affected musculoskeletal structures and lead to movement-related pain. According to the following list of literature, several published studies have shown that the VDT workstation is becoming a great contributor to musculoskeletal disorders (Table 1)

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