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자료유형
학술대회자료
저자정보
Yong-Ku Kong (The University of Sungkyunkwan) Dae-Min Kim (The University of Sungkyunkwan) Ji-Soo Park (The University of Sungkyunkwan) Sung-Yong Lee (The University of Sungkyunkwan) Kyeong-Hee Choi (The University of Sungkyunkwan)
저널정보
대한인간공학회 대한인간공학회 학술대회논문집 대한인간공학회 2014 추계학술대회
발행연도
2014.11
수록면
325 - 329 (5page)

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Objective: The primary purpose of this study was to evaluate the effects of various grip spans of pliers on the resultant force and subjective discomfort in female users. Background: Despite the automation of facilities, many workers were still using hand-tools such as wrench, screwdriver, and pliers. Those hand-tool users are having trouble with hand-related musculoskeletal disorders. Especially females tend to have a higher rate of hand-related musculoskeletal disorders than males. Method: A total of 26 females who had no history of upper extremity musculoskeletal disorders (MSDs) were participated in this study. All female participants were asked to exert a maximum grip force with three repetitions, and to report the subjective discomfort rating for five grip spans of pliers (45, 50, 60, 70, 80mm). Results: Results showed that the effects of grip span were statistically significant on the total grip strength, resultant force, and subjective discomfort rating in this study. The lowest total grip strength was obtained from the grip span of 80mm. For resultant force, the 50mm and 60mm grip spans showed also significantly higher resultant force. The lowest subjective discomfort was observed in the 50mm span. Conclusion: Based on the study, the 50mm and 60mm grip spans which provided highest resultant force as well as lowest discomfort rating might be recommendable for the female pliers users. Application: The results of the study might help to reduce hand-related musculoskeletal disorders and perform efficient task in the real-work environment.

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ABSTRACT
1. Introduction
2. Method
3. Results
4. Conclusion
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