Investigation of Risk Factors for Musculoskeletal Disorders by Quick Exposure Check and Effect of Ergonomic Intervention on Reducing Disorders in Assemblers in an Electric Industry Worker

Incidence of musculoskeletal disorders is one of the effects of inappropriateness between subjects and technology, which reduces the level of human immunity, occurrence of occupational disabilities, loss of working time and increasing costs. The aim of this study was to evaluate risk factors of musculoskeletal disorders for assemblers in an electric industry workerand effect of interventions on reducing the level of these disorders.

This interventional study was carried out among 75 women workers in a wall plug factory having more than one year working experience in 2017. The data collected were analyzed by using SPSS software version 20 and Chi-square, regression, independent t-test, after reviewing medical documentation and completing QEC and Nordic questionnaires before and after ergonomic interventions which was done in the form of training and corrective actions.

According to the results, the highest reported musculoskeletal disorders were in the shoulder, wrist, lower waist, upper lobe with frequency of 68%, 61%, 58% and 51%, respectively, that with respect   to ergonomic interventions, this reduction for each area was 60%, 46%, 49% and 46%, respectively, which was relatively a good reduction in abnormalities.

The interventions in this industry have shown the effectiveness of these methods for reducing musculoskeletal disorders, and it can be concluded that educational interventions and making activities periodically together have been effective in reducing disorders.