Gestión ergonómica preventiva para reducir los trastornos musculoesqueléticos en los trabajadores del área de producción de la Empresa GRINTEC

Abstract

The objective of this research was to carry out preventive ergonomic management for the reduction of musculoskeletal disorders in workers in the production area of the company GRINTEC located in Guayaquil city. For which the ergonomic risks to which workers are exposed were identified and the level of exposure was determined with which the necessary measures were proposed to improve working conditions, in addition, musculoskeletal disorders that may suffer from forced postures, repetitive movements and manual handling of loads were identified. The initial diagnosis was made through the Kuorinka Nordic questionnaire, which allowed us to know the areas of the body where discomfort occur, an 18% percentage was obtained for the shoulders, dorsolumbar area and hand or wrist. Ergonomic risk assessment and assessment was performed using the Check List OCRA methods, for repetitive movements and REBA, for forced postures, with the help of ERGONISA software in order to obtain more accurate data in less time. Ergonomic risks were found due to forced postures at the posts of: folding, milling, welding, lathe, milling, grinding and cleaning of blades, as well as risk by repetitive movements in: milling, grinding and cleaning of blades. With the results obtained and depending on the discomfort identified in the questionnaire it was determined that workers may suffer the following disorders: rotator cuff tendinitis, lumbalgia, carpal tunnel syndrome and tenosynovitis. To prevent the onset of these disorders, measures were proposed according to the need for each job and that do not interfere with the development of its work activities, so the company is recommended to implement these measures to reduce exposure to musculoskeletal disorders.