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Evaluation of the Physical Load and Biomechanics Conditions of Workers in Poultry Houses

Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan

Citation:  2010 Pittsburgh, Pennsylvania, June 20 - June 23, 2010  1008806.(doi:10.13031/2013.29730)
Authors:   Cinara da Cunha Siqueira Carvalho, Cecília Fátima Souza, Ilda Fátima Ferreira Tinôco, Maria de Fátima Araújo Vieira, Irene Menegali
Keywords:   Ergonomics, physical load, biomechanics, poultry

Currently, Brazil has stood out to the world market for poultry production. However, beyond the concern with the handling of animals, Brazil is a pioneer in the quest for the welfare of workers in the agricultural sector. Looking diagnose the working conditions for the creation of broilers, the aim of this work was to evaluate the biomechanics conditions and physical demands of work of employees in poultry facilities equipped with automatic or hang up manual feeders. To determine the physical effort it was used a heart rate meter Polar Electro, composed by a digital receiver, an elastic band and a sensor transmitter placed on the workers`s chest. Biomechanical analysis was based on photographic records made with the employees at various angles in addition to the charges involved on a specific activity, which were used as input on the computational two-dimensional biomechanical model for predicting postures. With these data it was observed that the physical load of the employees at the facilities equipped with manual feeders were classified as moderately heavy, while in that ones equipped with automatic feeders the cardiovascular load was classified as mild. With respect to biomechanics, in the facilities with manual feeders, workers were exposed to risk of injury in the shoulder, elbow, back, hip, knee and ankle. Thus, it appears that the facilities equipped with manual feeders are considered unhealthy to workers.

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