BIOMECHANIC EVALUATION OF CARPENTRY WORKERS IN THE DISTRITO FEDERAL, BRAZIL
DOI:
https://doi.org/10.5902/198050981746Keywords:
biomechanic, evaluation, ergonomics, carpentry.Abstract
The aim of this study was the biomechanical assessment of carpentry woodworkers, located in Brasília, DF. It was filmed the profile of each worker during the performance of his activities in the carpentry and the forces involved in the work were assessed. The image of each woodworker was congealed to accomplish the measurement of articulation angles. The data were submitted to the software of posture analysis “Winowas” (OWAS Method) and to the biomechanic model of posture prognosis and static forces, developed by Michigan University. The OWAS method showed that, for all machines and carpentries assessed, the worst posture occurred when the worker lifted and placed the pieces of wood on the floor and during the feeding in the smoother. The tridimensional biomechanic model registered the worst posture in different phases of the work cycle. In the first one, there were problems in all articulations, except the hips, when placing the pieces on the floor from the smoother. In the second one, there were problems in all articulations, except the elbows and the L5-S1 column disc, by feeding the surface planer. The third one, the ankles were the most injured when feeding the smoother, the surface planer, the circular saw and the band saw. According to the results, the woodworkers should try to eliminate the constant work standing upright, use auxiliary machinery to handle pieces of wood, reduce the load during feeding the machines and improve postures.
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References
CONAW, P. L. Estatística. São Paulo, Edgard Blucher. 1977. 264 p.
FIEDLER, N.C.; SOUZA, A.P.; MINETTI, L.J.; MACHADO, C.C.; TIBIRIÇÁ, A.C.G. Análise de posturas na colheita florestal. Revista Árvore, Viçosa, v. 23, n. 4. p. 435-441, 1999.
IIDA, I. Ergonomia: projeto e produção. São Paulo, Edgard Blucher, 1990. 465 p.
OWAS: manual Ovako Working Analysing System. Helsinki: Finnish Institute of Occupational Health. 1990. Não paginado.
SENAI. Serviço Nacional de Aprendizagem Industrial. Belo Horizonte. Operação em marcenarias. 1987. (Módulos de curso não paginados).
SINDIMAM/DF. Relação de empresas da indústria do mobiliário do Distrito Federal. Brasília: Sindicato das Indústrias de Madeira e do Mobiliário do Distrito Federal, 2001.17 p.
SILVA, K. R. Análise de fatores ergonômicos em marcenarias do município de Viçosa – MG. Viçosa, MG: UFV, 1999. 97 p. Dissertação (Mestrado em Ciência Florestal) – Universidade Federal de Viçosa, Viçosa, 1999.
UNIVERSITY OF MICHIGAN. 3 D Static strenght prediction program: version 2.0 – user’s manual. Michigan, Universidade de Michigan, Centro de Ergonomia, 1993. 76 p.
VENTUROLI, F. Diagnóstico das condições de trabalho nas marcenarias do Distrito Federal. Brasília, DF: UnB, 2000. 56p. Trabalho Final (Engenharia Florestal).
WIN-OWAS. Manual software for OWAS analysis. Tampere University of Technology, Occupational Safety Engineering.14 p. Disponível em: <http://turva.me.tut.fi/owas>. Acesso em: 21 de fevereiro de 2002.
