Submitted: 01 Jul 2012
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Health Promot Perspect. 2012;2(1):89-95.
doi: 10.5681/hpp.2012.011
PMID: 24688922
PMCID: PMC3963647
  Abstract View: 686
  PDF Download: 385

Original Research

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

Abstract

Background: According to the findings of several studies conducted on work-related musculoskeletal disorders (WMSDs) among the video display terminals (VDTs) users, Prevention of these disorders among this population is a challenge for many workplaces today. Ergonomically Improving of VDT workstations may be an effective and applicable way to decrease the risk of WMSDs. This study evaluated the effect of an ergonomics-training program on the risk of WMSDs among VDT users. Methods: This study was conducted among a large group of computer users in SAPCO industrial company, Tehran, Iran (84 persons with 29.85±11.2 years of age and with 6.98±2.54 years of experience). An active ergonomics-training program was designed and implemented during 14 days to empower the VDT users and involve them in improving their workstations. The direct observational RULA (Rapid Upper Limb Assessment) method was used in pre and post-intervention stages 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 users were at action level 1, 44.7% at action level 2, 42.4% at action level 3 and 4.7% at action level 4 at the post-intervention stage. The results of Wilcoxon statistical test indicated that RULA scores ere decreased significantly after interventions (P < 0.05) and consequently, decreased risk of WMSDs. Conclusion: Active ergonomics training programs can be used effectively to improve the VDT workstations and decrease the risk of musculoskeletal disorders among VDT users.
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