Evaluation of Musculoskeletal Disorders Risk Factors by REBA and QEC Methods in an Aluminum Industry

Authors

Abstract

Background: Musculoskeletal disorders (MSDs) are the most common problems in workplaces. The present study assessed the prevalence of musculoskeletal disorders and the level of risk for these disorders among workers of an aluminum industry in Tehran.


Method: In this cross-sectional study, Nordic questionnaire was used in order to assess musculoskeletal disorders among all workers in production line of the mentioned industry (82 workers) and to determine musculoskeletal disorders risk levels, workers’ body posture was assessed by REBA (Rapid Entire Body Assessment) and QEC (Quick Exposure Check) techniques. Statistical analysis was conducted using Chi-square test and through SPSS16 software.


Results: According to the results, 83.9 percent of the subjects have complained from pain in at least one of ​​their body areas during the past year. The highest prevalence of disorders was respectively allocated to the low back (48.2%), knee (35.7%) and wrist/hand (33.9%). The prevalence of musculoskeletal disorders showed significant correlation with age, job experience and BMI. But, REBA and QEC final scores had no significant correlations with the prevalence of musculoskeletal disorders. According to REBA and QEC, respectively 43.6 and 67.2 percent of postures were categorized in high and very high risk levels.     


Conclusion: High prevalence of musculoskeletal disorders and levels of risk, prioritize the necessity of corrective actions. Higher percent of high risk level in QEC than REBA can be attributed to the capability of this tool in combined investigation of work posture, work related risk factors and mental disorders affecting the incidence of these disorders.

Keywords


1. Santos AC, Bredemeier M, Rosa KF, Amantéa VA, Xavier RM. Impact on the quality of life of an educational program for the prevention of work-related musculoskeletal disorders: a randomized controlled trial. BMC Public Health. 2011;11(1):60. 2. Vanwonterghem K. Work-related musculoskeletal problems: Some ergonomic considerations. J Hum Ergol (Tokyo). 1996 Jun;25(1):5-13. 3. Waters T, Putz-Anderson V. Occupational Ergonomics. 1th ed. New York: Dekker Publication; 1996. 4. Karwowski W, Marras WS. Occupational Ergonomics: Engineering and Administrative Controls. 2 th ed. U‌S‌A: CRC Press; 2003. 5. Kozak A, Schedlbauer G, Peters C, Nienhaus A. Self-reported musculoskeletal disorders of the distal upper extremities and the neck in German veterinarians: a cross-sectional study. PLoS One. 2014;9(2):e89362. 6. Al-Eisa E, Buragadda S, Shaheen AA, Ibrahim A, Melam GR. Work related musculoskeletal disorders: causes, prevalence and response among egyptian and Saudi physical therapists. Middle-East Journal of Scientific Research. 2012;12(4):523-9. 7. McAtamney L, Nigel Corlett E. RULA: a survey method for the investigation of work-related upper limb disorders. Appl Ergon. 1993 Apr;24(2):91-9. 8. WISHA. Office Ergonomics, Practical solutions for a safer workplace. Washington State Department of Labor and Industries; 2002. Available from: http://www.lni.wa.gov/IPUB/417-133-000.pdf 9. Hagberg M, Morgenstern H, Kelsh M. Impact of occupations and job tasks on the prevalence of carpal tunnel syndrome. Scand J Work Environ Health. 1992 Dec;18(6):337-45. 10. Azari GR, Davuian Talab- AH. Comparison of burnout and musculoskeletal disorders among computer users and office workers. Journal of Rehabilitation. 2012;12(4):38-46. 11. Kemmlert K. Prevention of occupational musculo-skeletal injuries. Labour Inspectorate investigation. Scand J Rehabil Med Suppl. 1996;35:1-34. 12. Fouladi Dehghi B, Dehghan H, Ebrahimi Ghavam Abadi L. Evaluation of exposure to risk factor associated with musculoskeletal disorders in a house hold goods assembling company. J Guilan Univ Med Sci. 2008; 16‌(64):97-105. Persian. 13. Mirmohammadi S, Mehrparvar A, Soleimani H, Lotfi M, Akbari H, Heidari N. Musculoskeletal disorders among video display terminal (VDT) workers comparing with other office workers. Iran Occupational Health Journal. 2010; 7‌(2) :11-14. Persian. 14. The National Institute for Occupational Safety and Health (NIOSH). Musculoskeletal disorders and workplace factors - a critical review of epidemiologic evidence for work-related musculoskeletal disorders of the neck, upper extremity, and low back; 1997. 15. Kezunović L, Stamatović S, Stamatović B, Jovanović J. One-year prevalence of musculoskeletal symptoms in aluminium industry potroom workers. Facta Universi Tatis (Series: Medicine and Biology). 2004;11(3):148-53. 16. Rwamamara RR. Risk assessment and analysis of workload in an industrialized construction process. Construction Information Quarterly. 2007;9(2):80-5. 17. Kim S, Nussbaum MA, Jia B. Low back injury risks during construction with prefabricated (panelised) walls: effects of task and design factors. Ergonomics. 2011 Jan;54(1):60-71. 18. Choobineh A, Tabatabaee S, Behzadi M. Musculoskeletal problems among workers of an Iranian sugar-producing factory. Int J Occup Saf Ergon. 2009;15(4):419-24. 19. Janowitz IL, Gillen M, Ryan G, Rempel D, Trupin L, Swig L, et al. Measuring the physical demands of work in hospital settings: design and implementation of an ergonomics assessment. Appl Ergon. 2006 Sep;37(5):641-58. 20. Kuorinka I, Jonsson B, Kilbom A, Vinterberg H, Biering-Sorensen F, Andersson G, et al. Standardised Nordic questionnaires for the analysis of musculoskeletal symptoms. Appl Ergon. 1987 Sep;18(3):233-7. 21. National Heart Lung and Blood Institute, National Institute of Diabetes and Digestive and Kidney Diseases (US). Clinical guidelines on the identification, evaluation, and treatment of overweight and obesity in adults. National Heart, Lung, and Blood Institute in cooperation with the National Institute of Diabetes and Digestive and Kidney Diseases; 1998. 22. Karwowski W, Marras WS. The Occupational Ergonomics Handbook. New York: CRC Press; 2003. 23. Hignett S, McAtamney L. Rapid entire body assessment (REBA). Appl Ergon. 2000 Apr;31(2):201-5. 24. Li G, Buckle P. A practical method for the assessment of work-related musculoskeletal risks-Quick Exposure Check (QEC). Proceedings of the Human Factors and Ergonomics Society Annual Meeting; 1998. 25. Rahimi Moghaddam S, Khanjani N. Evaluating risk factors of work-related musculoskeletal disorders in assembly workers of Nishabur, Iran using rapid upper limb assessment. Journal of Health & Development. 2012;1(3):227-36. Persian. 26. Nadri H, Nadri F, Khanjani N, Abbasi AM, Haidari EA, Toolabi A, et al. Prevalence of musculoskeletal disorders in Aleshtar city bank staff and its associated factors. Journal of Health & Development. 2014;3(2):163-74. Persian 27. Choobineh AR, Mokhtarzadeh A, Salehi Tabatabai SR. Ergonomic evaluation of exposure to musculoskeletal disorders risk factors by QEC technique in a rubber factory. Jundishapur Scientific Medical Journal. 2008; 7(1):46-55. 28. Choobineh AR, Tabatabaei S, Tozihian M, Ghadami F. Musculoskeletal problems among workers of an Iranian communication company. Indian J Occup Environ Med. 2007 Jan-Apr; 11(1): 32–6. 29. Nadri H, Nadri A, Khanjani N, Nadri F, Jafari Roodbandi A. Evaluating the factors effective on musculoskeletal disorders among the employees of one of Qazvin’s governmental offices. Journal of Health & Development. 2013;2(2):106-16. Persian. 30. Keshtkaran A, Daniali A. Ergonomics disorders in the personnel of medical records department at training hospitals of Shiraz University of Medical Sciences. Health Information Management. 2007;4(1):61-9. Persian. 31. Choobineh AR, Rahimi Fard H, Jahangiri M, Mahmood Khani S. Musculoskeletal injuries and their associated risk factors. Iran Occupational Health Journal. 2012; 8 (4):70-81. Persian. 32. Burdorf A, Sorock G. Positive and negative evidence of risk factors for back disorders. Scand J Work Environ Health. 1997 Aug;23(4):243-56. 33. Lemasters GK, Atterbury MR, Booth-Jones AD, Bhattacharya A, Ollila-Glenn N, Forrester C, et al. Prevalence of work related musculoskeletal disorders in active :union: carpenters. Occup Environ Med. 1998 Jun; 55(6): 421–7. 34. Rahimifard H, Heydari HR, Tabaraei Y, Hajaghazadeh M, Moradi H, Danial Omrani D, et al. Study of prevalence of musculoskeletal disorders and identification of factors affecting them among furniture industry workers with Rapid Entire Body Assessment (REBA) Method. J Health Syst Res. 2012;7(6):916-25. Persian. 35. Li G, Haslegrave CM, Corlett EN. Factors affecting posture for machine sewing tasks: the need for changes in sewing machine design. Appl Ergon. 1995 Feb;26(1):35-46. 36. May S, Lomas D. Posture, the lumbar spine and back pain. International Encyclopaedia of Rehabilitation; 2013. 37. Tüzün C, Yorulmaz I, Cindaş A, Vatan S. Low back pain and posture. Clin Rheumatol. 1999;18(4):308-12. 38. Paquet VL, Punnett L, Buchholz B. Validity of fixed-interval observations for postural assessment in construction work. Appl Ergon. 2001 Jun;32(3):215-24.