• M.S.S. Mohamed
  • I. Halim
  • A.H. Azani Human Factors and Ergonomics Society Malaysia
  • A. Saptari
Keywords: Ergonomics Design, Work Posture, Manufacturing Industry, Workstation Design


Plastic printing workstations in the plastic manufacturing industry are still semi-automated exposing operators to various ergonomics risk factors. This study aims to redesign the existing plastic printing workstation for improving work posture to prevent the occurrence of work-related musculoskeletal disorders (WMSD). The ergonomics risk factors faced by ten plastic printing workstation operators were assessed using workplace observation, questionnaire survey and Rapid Upper Limb Assessment (RULA). The results showed the operators were subjected to frequent bending posture which may cause WMSD on the back, shoulder, and legs. A new workstation design concept was constructed and finalized using the House of Quality (HOQ). This study concluded that the new design of the workstation has improved the RULA score from 7 to 3. Further investigation is recommended on the productivity and product quality analysis, and muscle activity of the operators in the future study.


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[1] T. Bernhardt and R. Pollak, “Economic and social upgrading dynamics in global manufacturing value chains: A comparative analysis”, Environment and Planning A: Economy and Space, vol. 48, no. 7, pp. 1220-1243, 2016

[2] N.M. Yahya and M.N.O. Zahid, “Work-related musculoskeletal disorders (WMDs) risk assessment at core assembly production of electronic components manufacturing company”, IOP Conference Series: Materials Science and Engineering, vol. 319, pp. 1-7, 2018.

[3] M. Campo and A.R. Darragh, “Work-related musculoskeletal disorders are associated with impaired presenteeism in allied health care professionals”, Journal of Occupational and Environmental Medicine, vol. 54, no. 1, pp. 64-70, 2012.

[4] K.P. Martimo, R. Shiri, H. Miranda, R. Ketola, H. Varonen and E. Viikari-Juntura, “Self-reported productivity loss among workers with upper extremity disorders”, Scandinavian Journal of Work, Environment & Health, vol. 35, no. 4, pp. 301–308, 2009.

[5] W.F. Stewart, J.A. Ricci, E. Chee and D. Morganstein, “Lost productive work time costs from health conditions in the United States: Results from the American Productivity Audit”, Journal of Occupational Environmental Medicine, vol. 45, no. 12, pp. 1234-1246, 2003.

[6] R. Escorpizo, “Understanding work productivity and its application to work-related musculoskeletal disorders”, International Journal of Industrial Ergonomics, vol. 38, no. 3-4, pp. 291-297, 2008.

[7] B.M. Deros, D.D. Daruis, A.R. Ismail, N.A. Sawal and J.A. Ghani, “Work-related musculoskeletal disorders among workers' performing manual materials handling work in an automotive manufacturing company”, American Journal of Applied Sciences, vol. 7, no. 8, pp. 1087, 2010.

[8] K. Sarkar, S. Dev, T. Das, S. Chakrabarty and S. Gangopadhyay, “Examination of postures and frequency of musculoskeletal disorders among manual workers in Calcutta, India”, International Journal of Occupational and Environmental Health, vol. 22, no. 2, pp. 151-158, 2016.

[9] B. Tansel, “From electronic consumer products to e-wastes: Global outlook, waste quantities, recycling challenges”, Environment International, vol. 98, no. 2, pp. 35-45, 2017.

[10] R.D.C.P. Fernandes, A.Á. Assunção, A.M.S Neto and F.M. Carvalho, “Musculoskeletal disorders among workers in plastic manufacturing plants”, Revista Brasileira de Epidemiologia, vol. 13, no. 1, pp. 11-20, 2010.

[11] J. Sanjog, T. Patel, A. Chowdhury and S. Karmakar, “Musculoskeletal ailments in Indian injection-molded plastic furniture manufacturing shop-floor: Mediating role of work shift duration”, International Journal of Industrial Ergonomics, vol. 48, no. 3, pp. 89-98, 2015.

[12] L. McAtamney and E.N. Corlett, “RULA: a survey method for the investigation of work-related upper limb disorders”, Applied Ergonomics, vol. 24, no. 2, pp. 91-99, 1993.

[13] L. Dan, H. Lars and O. Roland, “A comparative study of digital human modelling simulation results and their outcomes in reality: A case study within manual assembly of automobiles”, International Journal of Industrial Ergonomics, vol. 39, no. 2, pp. 428-441, 2009.

[14] I. Halim, R.R. Umar, N. Ahmad, R.A. Rahim and N.F.I. Zakaria, “Conceptual design of shielded metal arc welding workstation: Work posture and bead dimension consideration”, Journal of Advanced Manufacturing Technology, vol. 11, no. 2, pp. 19-32, 2017.

[15] M. Motamedzade, “Ergonomics intervention in an Iranian tire manufacturing industry”, International Journal of Occupational Safety and Ergonomics, vol. 19, no. 3, pp. 475–484, 2013.

[16] F. Laal, R. Mirzaei, M.S. Behdani, M. Mohammadi, K. Khodami, “Evaluation of the influence of ergonomic intervention on the musculoskeletal disorders of Zahedan tailors”, International Journal of Occupational Safety and Ergonomics, vol. 23, no. 3, pp. 380-385, 2016.

[17] R.M. Zein, I. Halim, N.A. Azis, A. Saptari and S.R. Kamat, “A survey on working postures among Malaysian industrial workers, Procedia Manufacturing, vol. 2, pp. 450-459, 2015.

[18] T. Ghosh, “Assessment of postural effect on work related musculoskeletal disorders and back muscle fatigue among the goldsmiths of India”, International Journal of Occupational Safety and Ergonomics, vol. 5, no. 2, pp. 16-22, 2017.

[19] A. Colim, P. Carneiro, N. Costa, P.M. Arezes and N. Sousa, “Ergonomic assessment and workstation design in a furniture manufacturing industry - A case study”, in Occupational and Environmental Safety and Health. Studies in Systems, Decision and Control, vol. 202, P.M. Arezes, J. S. Baptista, M.P. Barroso, P. Carneiro, P. Cordeiro, N. Costa, R.B. Melo. A.S. Miguel and G. Perestrelo, Eds, Switzerland: Springer Cham, 2019, pp. 409-417.

[20] A. Kumari, “An ergonomic approach for modifying the workstation design of food processing enterprises”, The Pharma Innovation Journal, vol. 7, no. 11, pp. 333-337, 2018.

[21] C.N. Ikonne, “Influence of workstation and work posture ergonomics on job satisfaction of librarians in the federal and state university libraries in Southern Nigeria”, IOSR Journal Of Humanities And Social Science, vol. 19, no. 9, pp. 78-84, 2014.

[22] B.C. Amick, M.M. Robertson, K. DeRango, L. Bazzani, A. Moore, T. Rooney and R. Harrist, “Effect of office ergonomics intervention on reducing musculoskeletal symptoms”, Spine, vol. 28, no. 24, pp. 2706-2711, 2003.

[23] F. Gauthier, D. Gélinas and P. Marcotte, “Vibration of portable orbital sanders and its impact on the development of work-related musculoskeletal disorders in the furniture industry”, Computers & Industrial Engineering, vol. 62, no. 3, pp. 762-769, 2012.

[24] B. Suhardi, R.D. Astuti and A.T. Widodo, “Design of polishing tools for improving work posture in furniture industry”, in Proceedings of Joint International Conference Electric Vehicular Technology and Industrial, Mechanical, Electrical and Chemical Engineering, Surakarta, Indonesia, 2015, pp. 223-228.

[25] E. Lawler, “Safe patient handling and movement during the perioperative continuum: Mobile surgical platform use”, Perioperative Nursing Clinics, vol. 3, no. 1, pp. 27-33, 2008.
How to Cite
Mohamed, M., Halim, I., Azani, A., & Saptari, A. (2019). WORK POSTURE IMPROVEMENT AT PLASTIC PRINTING PROCESS IN PLASTIC MANUFACTURING INDUSTRY. Journal of Advanced Manufacturing Technology (JAMT), 13(3). Retrieved from