Avaliação ergonômica da atividade de derrubada com motosserra em áreas do bioma cerrado

Abstract

This study aimed to carry out an ergonomic assessment of the activity of chainsawfellings in areas of the cerrado biome, in order to assess whether workers are exposed to inadequate ergonomic conditions, which have the potential to cause damage to health.The data were collected in an experimental area of the cerrado biome, located on the campus of a Federal Institution of Higher Education in the northern region of the state of Minas Gerais. The phases of slaughtering, delimbing, tracing and supply and sharpening of the chainsaw chains were evaluated, having been evaluated the physical workload, through the workers' heart rate, and a biomechanical evaluation was carried out using the Three-dimensional Biomechanical Model of Posture and Strength Prediction Statistics (3DSSPPTM), developed by University of Michigan.The activity was classified as heavy, from the perspective of the physical workload, and the results showed that the studied work environment provided risks of musculoskeletal injuries and accidents to workers. Biomechanical analysis indicated a high risk of developing RSI/WRMD in workers' lower limbs when performing such activity. It is concluded that the activity presents a high ergonomic risk for workers during the development of all phases of the activity,favoring the appearance of work-related injuries and illnesses.