Risk of shoulder injuries in sugarcane workers: analysis based on the simulation of the movements
DOI:
https://doi.org/10.15448/1980-6108.2017.3.27610Keywords:
occupational health, rural workers, shoulder joint, shoulder impingement syndrome, occupational risks.Abstract
***Risk of shoulder injuries in sugarcane workers: analysis based on the simulation of the movements***
AIMS: To evaluate whether the amplitude angles of shoulder flexion and abduction, in the movements performed during a simulation of the sugarcane cutting task, exceed the limits considered safe.
METHODS: Non-randomized controlled simulations of the movement of sugarcane cutting were performed in volunteers recruited among university students. Inclusion criteria were (a) male sex; (b) age between 21 and 40 years; (c) right handed; (d) without orthopedic and/or neurological impairment; (e) physical characteristics and a history of work activities similar to that of sugarcane cutters; (f) performing aerobic physical activity at least three times a week in the last six months. The exclusion criteria were (a) presence of pain during the tests; and (b) inability to perform the movement. The study was carried out in the laboratory of occupational biomechanics of the Center for Study and Research in Ergonomics of the School of Science and Technology of the State University of São Paulo. The kinematic data were collected by the Vicon® Three-Dimensional Movement Analysis System. The movements of flexion and abduction of the right shoulder were measured and classified. The parameters used as reference to evaluate the results were those published by the Ministry of Health of Brazil, which synthesizes the safe limits of amplitude of these movements.
RESULTS: Ten subjects were evaluated, with a mean age of 24.5±4.78 years. A total of 39 samples obtained with the movement repetitions were analyzed during an average period of 30 seconds. The angle of shoulder in flexion remained above 30 degrees during 98.18% of the task execution time, above 45 degrees during 88.84%, above 60 degrees during 42.19% and above 90 degrees during 7.72% of the time. The abduction angle remained above 60 degrees throughout all the time and above 90 degrees during 57.59% of the time. In the amplitude of movement spikes, abduction apertures with angles greater than 100 degrees were observed.
CONCLUSIONS: During most of the time of the experiments that simulated the movement of sugarcane cutting, the flexion and abduction angles of the shoulder were above those considered safe, indicating that the activity performed by sugarcane cutters has a strong potential to cause damage to the shoulder joint.
Downloads
References
Luz VG, Zangirolani LTO, Vilela RAG, Corrêa-Filho HR. Consumo alimentar e condições de trabalho no corte manual de cana de açúcar no estado de São Paulo. Saúde e Sociedade. 2014;23(4):1316-28. https://doi.org/10.1590/S0104-12902014000400016
Alves F. Porque morrem os cortadores de cana? Saúde e Sociedade. 2006;15(3):90-8. https://doi.org/10.1590/S0104-12902006000300008
Silva MRC. Estudos de alternativas ergonômicas para a colheita na lavoura de cana-de-açúcar.Rio de Janeiro (RJ): Fundação Getúlio Vargas I Instituto Superior de estudos e pesquisas psicossociais (ISOP), Centro Brasileiro de Ergonomia e Cibernética; 1981. Relatório Técnico, 97p.
Messias IA, Okuno E. Study of postures in sugarcane cutters in the Pontal of Paranapanema-SP, Brazil. Work. 2012;41 Suppl 1:5389-91.
Rocha FLR, Marziale MHP, Robazzi MLCC. A Pobreza Como Fator Predisponente ao Adoecimento de Trabalhadores do Corte da Cana-de-Açúcar. Rev Lat Am Enfermagem. 2007;15(número especial).
Novaes JRP. Campeões de Produtividade: dor e febre nos canaviais paulistas. EstudosAvançados. 2007;21(59):167-77. https://doi.org/10.1590/S0103-40142007000100013
Brasil. Ministério da Saúde, Secretaria de Vigilância em Saúde. Departamento de Vigilância em Saúde Ambiental e Saúde do Trabalhador. Dor relacionada ao trabalho: Lesões por Esforços Repetitivos (LER): Distúrbios Osteomusculares Relacionados ao Trabalho (Dort). Brasília: Editora do Ministério da Saúde; 2012.
Carvalho CD, Cohen C, Belangero OS, Figueiredo EA, Monteiro GC, Pochini AC, Andreoli CV, Ejnisman B.Lesão parcial do manguito rotador no atleta – bursal ou articular?, Revista Brasileira de Ortopedia. 2015;50(4):416-21. https://doi.org/10.1016/j.rbo.2014.07.002
Aaras A, Westgaard RH, Stranden E. Postural angles as an indicator of postural load and muscular injury in occupational work situations. Ergonomics. 1988;31(6):915-33. https://doi.org/10.1080/00140138808966731
Basmajian JV. Terapêutica por exercícios. São Paulo: Manole; 1980.
Mitchell K, Banks S, Morgan D, Sugaya H. Shoulder Motions During the Golf Swing in Male Amateur Golfers. J Orthop Sports Phys Ther. 2003;23(4):196-203. https://doi.org/10.2519/jospt.2003.33.4.196
Vicon Motion Systems Ltda. Vicon plug-in gait product guide: foundation notes revision; 2012:86p.
Jordan K, Dziedzic K, Mullis R. The development of three-dimensional range of motion measurement systems for clinical practice. Rheumatology (Oxford). 2001;40(10):1081-4. https://doi.org/10.1093/rheumatology/40.10.1081
Sônego DA, Cliquet Júnior A. Análise do movimento de abdução do ombro pelo sistema óptico. Biosci J. 2006;22(2):147-58.
Pfister, West AM, Bronner S, Noah JA. Comparative abilities of Microsoft Kinect and Vicon 3D motion capture for gait analysis. J Med Eng Technol. 2014;38(5):274-80. https://doi.org/10.3109/03091902.2014.909540
Robertson, G. E., G. E. Caldwell, Hamill, J, Kamen, G. Research Methods in Biomechanics. 2nd ed. Champaign (IL): Human Kinetics; 2014.
Bjelle A, Hagberg M, Michaelson G. Occupational and individual factors in prolonged shoulder pain among industrial workers. Brit J Ind Med. 1981;38(4):356-63.
Chaffin DB. Localized muscle fatigue: definition and measurement. J Occup Med. 1973;15(4):346-54.
Herberts P, Kadefors R, Broman H. Arm positioning in manual tasks: an electromyographic study of localized muscle fatigue. Ergonomics. 1980;23(7):655-65. https://doi.org/10.1080/00140138008924780
Beyer JA, Wright IS. The hyperabduction syndrome: with special reference to its relationship to Raynaud`s syndrome. J Am Heart Assoc. 1951;4(2):161-72. https://doi.org/10.1161/01.CIR.4.2.161
Järvholm U, Palmerud G, Karlsson D, Herberts P, Kadefors R. Instramuscular pressure and electromyography in four shoulder muscles. J Orthop Res. 1990;9(4):609-19. https://doi.org/10.1002/jor.1100090418
Hagberg M. Electromyographic signs of shoulder muscular fatigue in two elevated arm positions. Am J Phys Med. 1981;60(3):111-21.
Hagberg M. Work load and fatigue in repetitive arm elevations. Ergonomics. 1981;24(7):543-55. https://doi.org/10.1080/00140138108924875
Kilbom A, Persson J, Jonsson BG. Disorders of the cervicobrachial region among female workers in the electronics industry. Int J Ind Ergon. 1986;1(1):37-47. https://doi.org/10.1016/0169-8141(86)90006-5
Luopajärvi T, Kuorinka I, Virolainen M, Holmberg M. Prevalence of tenosynovitis and other injuries of the upper extremities in repetitive work. Scand J Work Environ Health. 1979;5(3):48-55. https://doi.org/10.5271/sjweh.2675
Sakakibara H, Miyao M, Kondo T, Yamada S, Nakagawa T, Kobayashi F. Relation between overhead work and complaints of pear and Apple orchad workers. Ergonomics. 1987;30(5):805-15. https://doi.org/10.1080/00140138708969769
Jonsson B, Persson J, Kilbom A. Disorders or the cervicobrachial region among female workers in the electronics industry: a two-year follow up. Int J Ind Ergon. 1988;3(1):1-12. https://doi.org/10.1016/0169-8141(88)90002-9
Aaras A, Westgaard RH. Further studies of postural load and musculoskeletal injuries of workers at an electro-mechanical assembly plant. Appl Ergon. 1987;18(3):211-9. https://doi.org/10.1016/0003-6870(87)90006-8
Aaras A, Westgaard RH. Stranden, E. Work load on local body structures assessed by postural angles measurements. In: Corlett N, Wilson J, Manenica I. (Eds.). New methods in applied ergonomics. Proceedings of the second international occupational ergonomics symposium. London: Taylor & Francis; 1987. p. 273-8.
Cliquet Júnior A, Franca Jem, SônegoD, Grana T, Leite Fil, Paolillo Ar, Paolillo Fr. Avanços tecnológicos na prática ortopédica: Análises de membros superiores e inferiores. Acta Ortop Bras. 2004;12(1):57-61. https://doi.org/10.1590/S1413-78522004000100008
Downloads
Published
How to Cite
Issue
Section
License
Copyright
The submission of originals to Scientia Medica implies the transfer by the authors of the right for publication. Authors retain copyright and grant the journal right of first publication. If the authors wish to include the same data into another publication, they must cite Scientia Medica as the site of original publication.
Creative Commons License
Except where otherwise specified, material published in this journal is licensed under a Creative Commons Attribution 4.0 International license, which allows unrestricted use, distribution and reproduction in any medium, provided the original publication is correctly cited.
