A Study on Musculoskeletal Disorders in Computer Workers - Taking an Example from an IC Design Firm
|關鍵字:||電腦作業;肌肉骨骼不適;NMQ肌肉骨骼問卷;關鍵指標法(KIM);computer-related jobs;musculoskeletal disorder;Nordic Musculoskeletal Questionnaire, NMQ;Key indicators method, KIM|
This thesis conducted researches on 120 workers of an IC design firm in Hsinchu Science Park in Taiwan. The researches were mainly carried out through Nordic Musculoskeletal Questionnaire (NMQ) and Key indicators method (KIM). The questionnaires were analyzed through statistic software after the workers completed them. The researches’ results show the percentages of nine body parts that affected by musculoskeletal disorder on the workers over the past year. Over 70% occurred on neck, 68.3% on shoulders, 33.6% on upper back, 54.2% on lower back and waist, 20.8% on elbows, 40% on hands and wrists, 28% on buttock and thighs, 27.5% on knees and 14.2% on ankles and feet. After cross-referenced the results with the workers' opinions on their works, the researches found over 50% of their disorders on neck, shoulders, waist, elbows and wrists were partially or entirely caused by their works. The study then carried out a statistic analysis to find out the relation between the musculoskeletal symptoms of the surveyed workers and long-term and repetitive motions. The main causes of the disorders were prolonged and static posture, poor posture and highly-repetitive actions, according to the examinations carried out through the KIM on research and development in laboratories, welding workshops, samples manufacturing workshops, the operations to pick and place modules and touch screen tests workshops. The three causes often result in musculoskeletal disorders in necks, shoulders, lower back and waist, hands and wrists and elbows. Analysis conducted through questionnaires also showed the percentages of the disorder occurred on neck, shoulders, lower back and waists and hands and wrists were indeed higher than the other parts of body. Thereby, the KIM can be used to evaluate the risks of musculoskeletal disorder that workers are exposed to in workplaces. The study conducted ergonomics engineering programs and improvement campaigns in accordance with analyses of the questionnaires and the results of ergonomic checklists, and then followed up and evaluated the improvements in an attempt to reduce musculoskeletal risks and damages.
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