Analysis of Working Postures in Rubber Manufacturing Industry by using OWAS and RULA Methods


Merve Yılmaz


The basic conditions of working in a healthy and safe workplace are to design the job in accordance with the anthropometric measurements, body strength and personal characteristics of the person, to ensure that the materials, machinery and equipment used in the working process are suitable for the employee's capacity, and to provide an environment that will produce positive psycho-social results. Correct analysis methods should be used and evaluated in order to meet this basic requirement. Identifying the negative effects of working postures, taking corrective measures and improving them is a critical step of an efficient working environment. Working postures that are not properly analyzed cause strain on workers and even discomfort. It provides important contributions in the field of analyzing and improving working postures with scientific methods, controlling work performance and reducing musculoskeletal disorders (MSDs). OWAS (Ovako Working Posture Analyzing System) and RULA (Rapid Upper Limb Assessment) are successfully applied in various fields in the analysis of working postures. In this study, it was aimed to determine the MSDs risk levels of the workers working in the rubber industry by OWAS and RULA methods and measures were proposed for these risks. While OWAS analysis was obtained by using expert opinions in the study, CATIAV5R20 program was used for RULA analysis. The study includes the examination of 5 different postures in total. In the OWAS and RULA results of the study, it was seen that the most risky postures are attach the rubber hose to the cores and to place the rubber hoses attached to the cores in the autoclave. The results of the analysis showed that the RULA method is more suitable and reliable than the OWAS method for the analysis of the tasks in the vulcanization process workstations.


How to Cite
Yılmaz, M. (2023). Analysis of Working Postures in Rubber Manufacturing Industry by using OWAS and RULA Methods. International Journal of Pioneering Technology and Engineering, 2(01), 103–112.


  1. Pandve, H. T., 2017, Historical Milestones of Ergonomic, From Ancient Human to Modern Human. J Ergonomics, 7, e169.
  2. Karwowski, W., 2006, The discipline of ergonomics and human factors, Handbook of human factors and ergonomics, 1-31.
  3. Hussain, M. M., Qutubuddin, S. M., Kumar, K. P. R., & Reddy, C. K., 2019, Digital human modeling in ergonomic risk assessment of working postures using RULA, In Proceedings of the international conference on industrial engineering and operations management Bangkok, Thailand, March, 5-7.
  4. IEA - International Ergonomics Association, 2000, In the discipline of ergonomics, Retrieved from
  5. Westgaard, R. H., & Winkel, J., 1997, Ergonomic intervention research for improved musculoskeletal health: a critical review, International journal of industrial ergonomics, 20(6), 463-500.
  6. Haslegrave, C. M., 1994, What do we mean by a ‘working posture’?. Ergonomics, 37(4), 781-799.
  7. Vieira, E. R., & Kumar, S., 2004, Working postures: a literature review, Journal of occupational rehabilitation, 14(2), 143-159.
  8. Yetim, H., & Gunduz, T., 2015, Ergonomic Analysis of Working Postures That Cause Strain on Workers That Work in Hand Placement Business of Transporting Containers, PressAcademia Procedia, 1(1), 1-10.
  9. Fığlalı, N., Cihan, A., Esen, H., Fığlalı, A., Çeşmeci, D., Güllü, M. K., & Yılmaz, M. K., 2015, Image processing-aided working posture analysis: I-OWAS, Computers & Industrial Engineering, 85, 384-394.
  10. Terra, S., Tonetto, M., Franz, L. A., & Amaral, F., 2023, ROSA and RULA Methods: A Case Study on A Hospital.
  11. Karhu, O., Kansi, P., & Kuorinka, I., 1977, Correcting working postures in industry: A practical method for analysis, Applied ergonomics, 8(4), 199-201.
  12. Dohyung Kee & Waldemar Karwowski, 2007, A Comparison of Three Observational Techniques for Assessing Postural Loads in Industry, International Journal of Occupational Safety and Ergonomics, 13(1), 3-14, DOI: 10.1080/10803548.2007.11076704.
  13. Zhang, H., & Lin, Y., 2023, Prediction of Ergonomic Risks and Impacts on Construction Schedule through Agent-Based Simulation, Journal of Construction Engineering and Management, 149(3), 04022181.
  14. Lynn McAtamney and E Nigel Corlett.,1993, RULA: a survey method for the investigation of world-related upper limb disorders, Applied Ergonomics, 24(2), 91-99.
  15. Iqbal, M., Hasanuddin, I., Aleyzia, R., Safitriyawi, R., & Hassan, A., 2023, Analysis of Working Posture on Tofu Factory Operator Activities Using RULA Method and Virtual Engineering Software, In International Conference on Experimental and Computational Mechanics in Engineering, 299-309, Springer, Singapore.
  16. Gawliński, M., & Łyp-Wrońska, K., 2023, Estimation of Workload Level of Dynamic and Static Warehouse Assemblers in Logistic and Ergonomic Aspect, In International Symposium on Farm Machinery and Processes Management in Sustainable Agriculture, 227-237, Springer, Cham.
  17. Cimino, A., Gnoni, M. G., Longo, F., & Nicoletti, L., 2023, A risk assessment framework based on ergonomic methods and AHP for prioritizing interventions to prevent container terminal operator's musculoskeletal disorders, Safety Science, 159, 106017.
  18. Pandit, S., Chindarkar, G. P., Rao, L. D., Das, S., Sahu, A., & Kamble, R., 2023, A Study on Musculoskeletal Disorders in Elderly Female Farmers in the Village Baruva, Srikakulam District of Andhra Pradesh, In Recent Trends in Product Design and Intelligent Manufacturing Systems, 63-70, Springer, Singapore.
  19. Brazil, C. K., Pottorff, T. A., Miller, M., & Rys, M. J., 2023, Using the Rapid Upper Limb Assessment to Examine the Effect of the New Hotel Housekeeping California Standard, Applied rgonomics, 106, 103868.
  20. Bawiskar, S., Sahu, A., Pandit, S., Kirdat, B., Kamble, R., Ahmed, S., & Sinku, S., 2023, Identification of Postural Load on Sculptors of Sculpting Industry of India, In Recent Trends in Product Design and Intelligent Manufacturing Systems, 77-82, Springer, Singapore.
  21. Varghese, A., Panicker, V. V., Abraham, J., Gimmi, J., Tom, J., & Desini, K., 2022, Ergonomic Risk Assessment of Rubber Tappers Using Ovako Working Posture Analysing System (OWAS), In International Conference of the Indian Society of Ergonomics, 1531-1541, Springer, Cham.
  22. Nedohe, K., Mpofu, K., & Makinde, O., 2023, Assessment of Ergonomics Risk Experienced by Welding Workers in a Rail Component Manufacturing Organization, In International Conference on Flexible Automation and Intelligent Manufacturing, 227-236, Springer, Cham.
  23. Malhotra, H., & Chauhan, M. K., 2022, Working Posture Analysis of Female Residential Building Sweepers Using OWAS Method, In Technology Enabled Ergonomic Design, 483-490, Springer, Singapore.
  24. Kamble, R., Pandit, S., & Sahu, A., 2022, Occupational ergonomic assessment of MSDs among the artisans working in the Bagh hand block printing industry in Madhya Pradesh, India, International Journal of Occupational Safety and Ergonomics, 1-7.
  25. Kee, D., Na, S., & Chung, M. K., 2020, Comparison of the OVAKO working posture analysis system, rapid upper limb assessment, and rapid entire body assessment based on the maximum holding times, International Journal of Industrial Ergonomics, 77, 102943.
  26. Christopher Brandl, Alexander Mertens & Christopher M. Schlick, 2017, Ergonomic analysis of working postures using OWAS in semi-trailer assembly, applying an individual sampling strategy, International Journal of Occupational Safety and Ergonomics, 23:1, 110-117, DOI: 10.1080/10803548.2016.1191224
  27. Tzu-Hsien Lee & Chia-Shan Han, 2013, Analysis of Working Postures at a Construction Site Using the OWAS Method, International Journal of Occupational Safety and Ergonomics, 19:2, 245-250, DOI: 10.1080/10803548.2013.11076983
  28. Nwe, Y. Y., Toyama, S., Akagawa, M., Yamada, M., Sotta, K., Tanzawa, T., ... & Ogiwara, I., 2012, Workload assessment with Ovako Working Posture Analysis System (OWAS) in Japanese vineyards with focus on pruning and berry thinning operations, Journal of the Japanese Society for Horticultural Science, 81(4), 320-326.
  29. Ketan, H. S., & Al-Zuheri, A. K., 2008, Correcting working postures in water pump assembly tasks using the OVAKO work analysis system (OWAS), Al-Khwarizmi Engineering Journal, 4(3), 8-17.
  30. Li, K. W., & Lee, C. L., 1999, Postural analysis of four jobs on two building construction sites: an experience of using the OWAS method in Taiwan, Journal of Occupational Health, 41(3), 183-190.
  31. Qutubuddin, S. M., Pallavi, R. P., Sambrani, A., & Padashetty, D., 2022, Analysis of working postures in a small-scale fastener industry by rapid upper limb assessment (RULA) using CATIA software, In Technology Enabled Ergonomic Design: Select Proceedings of HWWE 2020, 75-85, Singapore: Springer Nature Singapore.
  32. Nugraha, M. H., Anes, I. R., Widyantoro, W., Rohman, A., & Kostaman, T., Comparison Analysis of RULA Scores on Improvement Workplace Design in Concrete Brick Manufacturing SMEs, SITEKIN, Jurnal Sains, Teknologi dan Industri, 20(2), 464-468.
  33. Ibrahim, M. H., Raja M, R. M., Mazlan, N. A., Azinee, S. N., Mohamed, K. A., Roslan, U. N., & Basir, M. H., 2023, Rapid Upper Limb Assessment among Malaysian Multi-Purpose Vehicle’s Driver, Current Journal of Applied Science and Technology, 42(5), 12-18.
  34. Elayaraja, R., Sugan, V., Subramaniam, D., Thameem, S., Prabhakaran, T. S., Ranjith, M., & Thanikachalam, K., Ergonomic Posture Evaluation Of Drilling Machine Workers Using Digital Human Modeling (DHM).
  35. Rabbika, A. I., Nugraha, M. H., Widyantoro, W., & Widagdo, T. J., 2023, Implementasi Motor Operated Valve Untuk Penyiraman Tanaman Kangkung Di Lahan Gapoktan Mekar Jaya. Kreatif, Jurnal Pengabdian Masyarakat Sains dan Teknologi, 1(1), 25-29.