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Effectiveness of an Ergonomics Training Program on Decreasing Work-Related Musculoskeletal Disorders Risk among Video Display Terminals Users

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Author(s): Yahya Rasoulzadeh | Reza Gholamnia

Journal: Health Promotion Perspectives
ISSN 2228-6497

Volume: 2;
Issue: 1;
Start page: 89;
Date: 2012;
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Keywords: VDT workstation | Ergonomics | Training | RULA | Musculoskeletal disorders

ABSTRACT
loskeletaldisorders (WMSDs) among the video display terminals (VDTs) users, Prevention ofthese disorders among this population is a challenge for many workplaces today. ErgonomicallyImproving of VDT workstations may be an effective and applicable way to decrease the risk ofWMSDs. This study evaluated the effect of an ergonomics-training program on the risk ofWMSDs among VDT users.Methods: This study was conducted among a large group of computer users in SAPCO industrialcompany, Tehran, Iran (84 persons with 29.85±11.2 years of age and with 6.98±2.54 years ofexperience). An active ergonomics-training program was designed and implemented during 14days to empower the VDT users and involve them in improving their workstations. The directobservational RULA (Rapid Upper Limb Assessment) method was used in pre and postinterventionstages to evaluate the risk of WMSDs among participants.Results: The RULA final scores showed that 18.8 % of VDT users were at action level 2, 63.5%at action level 3 and 17.6% at action level 4 before any intervention. In addition, 8.2% of userswere at action level 1, 44.7% at action level 2, 42.4% at action level 3 and 4.7% at action level 4 atthe post-intervention stage. The results of Wilcoxon statistical test indicated that RULA scoresere decreased significantly after interventions (P < 0.05) and consequently, decreased risk ofWMSDs.Conclusion: Active ergonomics training programs can be used effectively to improve the VDTworkstations and decrease the risk of musculoskeletal disorders among VDT users.
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