Comparison of Ergonomic Risk Analysis Methods for Working Postures of Forest Nursery Workers
Abstract
The chores of forest nursey workers are comprised of manual labor based on the physical structure of the worker. Long term working postures repeated throughout the shift results in strains at various levels in the body of the worker thereby having adverse impacts on their performances. There are various methods developed in literature for ergonomic risk assessment. The purpose of this study was to examine the working postures of nursery workers working at the Bayburt and Hendek forest nurseries and to analyze problematic working postures using the ergonomic risk analysis methods of OWAS (Owako Working position Analysis System), REBA (Rapid Entire Body Assessment), and RULA (Rapid Upper Limbs Assessment) the reliabilities of which have been proven in literature. This result reveals that hazardous and very hazardous ratios in working postures were 4.6%, 8%, 20% in OWAS, REBA, and RULA methods, respectively. Based on the opinion that the method yielding greater risks is more sensitive for eliminating the risks in the shortest amount of time, it can be put forth that the RULA method gave more sensitive results in comparison with the OWAS and REBA methods.
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References
- Acar, H.H., Eroğlu, H., 2001. Research on Health Problems in Wood Production and Nursery-Afforestation Workers in Forestry, 8. National Ergonomics Congress, 25-26 October, p.8-14, İzmir.
- Anas, A., Qutubuddin, S.M., Hebbal, S.S., Kumar, A.C.S., 2012. An Ergonomic Study of Work Related Musculoskeletal Disorders Among the Workers Working in Typical Indian Saw Mills. International Journal of Engineering Research and Development, 3(9):38-45.
- Anonim, 2014. Observation-Based Posture Assessment Review of Current Practice and Recommendations for Improvement. Department of Health and Human Services, Centers for Disease Control and Prevention. National Institute for Occupational Safety and Health. USA, 32p.
- Ayan, B., 2015. Ergonomic Risk Factors Investigation in Assembly Line: An Application in the Automotive Industry. Ministry of Labour and Social Security, Centre for Labour and Social Security Training and Research, Thesis. Ankara. 109 s.
- Calvo, A., 2009. Musculoskeletal Disorders (MSD) Risks in Forestry: A Case Study to Suggest an Ergonomic Analysis. Agricultural Engineering International: CIGR Journal, 11(4):1-9.
- Chang S. W., Wang M.J., 2007. Digital Human Modeling and Workplace Evaluation: Using an Automobile Assembly Task as an Example. International Journal of Human Factors and Ergonomics in Manufacturing and Service Industries, 17(5):445-455.
- Curtis, V., 1994. Women and the Transport of Water. London, IT Publications.
- Çalışkan, E., 2016. Comparison of Workers Timber Harvesting in Ergonomic Risk Assesment Methodology, International Conference on Safetry&Health, 8-11 May, Abstracts Book s.137, İstanbul Turkey.
- Dockrell, S., O’Grady, E., Bennett, K., Mullarkey, C., Mc Connell, R., Ruddy, R., Twomey, S., Flannery, C., 2012. An Investigation of the Reliability of Rapid Upper Limb Assessment (RULA) as a Method of Assessment of Children’s Computing Posture, Applied Ergonomics, 43:632-636.
- Enez, K., Nalbantoğlu, S.S., 2015. Forestry Activities Evaluation of the Method in terms of REBA. Suleyman Demirel University Journal of Engineering Sciences and Design, 3(3):127-131.
