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위보기 작업 시 EMG를 이용한 목 근육의 부하 평가A Study of Loadings of Neck Muscles when Bent Backward
- Other Titles
- A Study of Loadings of Neck Muscles when Bent Backward
- Issue Date
- 2012
- Publisher
- 한국안전학회
- Keywords
- EMG; sternocleidomastoideus; trapezius; musculoskeletal stress
- Citation
- 한국안전학회지, v.27, no.1, pp.111 - 116
- Journal Title
- 한국안전학회지
- Volume
- 27
- Number
- 1
- Start Page
- 111
- End Page
- 116
- ISSN
- 1738-3803
- Abstract
- Workers who work with his neck bent backward in the standing posture have often complained of their musculoskeletal stress. The objective of this study was to find how much stress there was for workers who worked with their neck bent backward. The subjective evaluation and electromyography(EMG) were used to check the level of the stress. It was found that all subjects felt extreme pain after working with the neck bent backward and alternating 1 minute work and 0.5 minute rest for 30 minutes. The EMG level(amplitude) of neck muscles increased 80 percent on the average and the center frequency of EMG shifted to the lower frequency level which indicated fatigue of neck muscles. Thus, the intervention of this musculoskeletal stress is strongly recommended
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Collections - College of Engineering > Industrial Engineering Major > 1. Journal Articles
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