Evaluación de factores de riesgo ergonómico en los puestos de trabajo de la línea de ensamblaje de refrigeradoras de una empresa y su relación con afecciones músculo-esqueléticas

Abstract

This research is intended to establish the relationship between ergonomic risks factors in the workstations of the refrigerators’ assembly line, and the occurrence of musculoskeletal disorders. Firstly, the ergonomic risk in eight workstations was evaluated after an initial diagnosis was carried-out by using a checklist. On a second stage, RULA, REBA and OWAS methodologies were applied to evaluate the ergonomic risks at the workstations. In order to identify musculoskeletal disorders (MSD), the Nordic Questionnaire was applied to all workers, intended to identify symptoms related to these disorders. The QEC (Quick Exposure Assessment) was also applied, as an observation technique that requires participation of workers to identify risks, and allows a rapid assessment of musculoskeletal disorders. Based on identification and evaluation of ergonomic risks, the author issued a technical plan to control those risks, as well as to mitigate potential musculoskeletal disorders caused to the workers.