Presencia de molestias músculo-esqueléticas en zona lumbar y miembros superiores asociadas a posturas forzadas en el puesto de soldadura en un taller metalmecánico y su propuesta de control

Abstract

Objective: I) To evaluate ergonomic risk level correlated with forced postures in the welding position in a metalworking company and II) To develop an improvement proposal that allows to reduce the risk level and muscle-skeletal discomfort in lumbar zone and upper limbs. Method: Case study applied to three employees from a metalworking company who manifest pain in the lumbar zone and upper limbs, applying the Nordic Kuorinka questionnaire in order to obtain a perception of pain and also using the REBA method identifying forced positions and the level of risk that they are exposed. Results: The study carried out indicates that two of the welders the tallest and senior ones have discomfort in the lower back area, in addition within welding activity, was found that sub-task with greater ergonomic risk by forced postures is due to the location of the pieces that workers work with. Conclusions: According to the results, it is necessary to control the height of the desk (work surface), active breaks, design and apply a risk prevention plan with the principal aim of protecting the health of each co-worker.