Risk assessments of work-related musculoskeletal disorders among the TFT-LCD manufacturing operators |
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| Affiliation: | 1. Universidad de Sevilla, Seville, Spain;2. Universidad de Málaga, Malaga, Spain;1. Department of Health and Safety, Safa University of Applied Science and Technology, Saveh, Iran;2. Department of Ergonomics, Tabriz University of Medical Sciences, Tabriz, Iran;1. Department of Physical Therapy, Masters and Doctoral Programs in Physical Therapy, Universidade Cidade de São Paulo, São Paulo, Brazil;2. Department of Social and Behavioral Sciences, Harvard T.H. Chan School of Public Health, Boston, MA, United States;3. Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, United States;4. Department of Physical Therapy, Movement, and Rehabilitation Sciences, Bouvé College of Health Sciences, Northeastern University, Boston, MA, United States;1. Faculty of Occupational Safety, University of Nis, Serbia;2. Cornell University, USA;3. Faculty of Electronic Engineering, University of Nis, Serbia |
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| Abstract: | The thin film transistor liquid crystal display (TFT-LCD) industry is one of the major industries in Taiwan, yet few studies addressed its work-related musculoskeletal disorders (WMSDs). Thus, this study aims to evaluate the risk of WMSDs among the operators of a TFT-LCD manufacturing company in Taiwan by using the subjective questionnaire and ergonomic assessment tools. First, the NMQ survey was conducted among 393 operators, accounting for 94% of all operators in the TFT-LCD plant. The results showed that the prevalence of WMSDs was 31.8%. Among the various body parts, the highest prevalence of WMSDs was found in neck and shoulders (20.4%), while upper limbs were with the lowest prevalence (9.2%). Besides, the prevalence of WMSDs tends to be affected by both work factors and operator factors. Those who were more experienced, working in day shift and involved in the Array process tend to have a higher prevalence of WMSDs. Further, female and domestic operators reported a higher prevalence of WMSDs than male and foreign operators. Moreover, the jobs of 50 employees were analyzed using ergonomic assessment tools including OSHA MSDs, BRIEF, OWAS, 3D SSPP, and NIOSH lifting equation. The findings indicated that inadequate working height, restricted working space, awkward postures, overweight load, and high repetition were the major risk factors of WMSDs. Thus, countermeasures such as redesigning the workstations and material handling carts, proactive training of manual material handling, and providing safety clearance are recommended to enhance the occupational health and safety of the TFT-LCD operators. |
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| Keywords: | NMQ survey OSHA MSDs BRIEF OWAS 3D SSPP NIOSH lifting equation |
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