한국전문물리치료학회지 (Physical Therapy Korea)
- 제11권1호
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- Pages.35-43
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- 2004
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- 1225-8962(pISSN)
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- 2287-982X(eISSN)
문서입력 작업 시 컴퓨터 키보드 유형이 손목관절의 운동학적 특성에 미치는 영향
The Effect of Standard Keyboard and Fixed-Split Keyboard on Wrist Posture During Word Processing
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Kwon, Hyuk-Cheol
(Dept. of Rehabilitation Technology, Daegu University) ;
- Jeong, Dong-Hoon (Dept. of Rehabilitation Technology, Korea Nazarene University) ;
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Kong, Jin-Yong
(Dept. of Occupational Therapy, The Graduate School of Rehabilitation Science, Daegu University)
- 발행 : 2004.02.19
초록
There were two purposes of this study. The first was to research the effects of standard and fixed-split keyboards on wrist posture and movements during word processing. The second was to select optimal computer input devices in order to prevent cummulative trauma disorder in the wrist region. The group of subjects consisted of thirteen healthy men and women who all agreed to participate in this study. Kinematic data was measured from both wrist flexion and extension, and wrist radial and ulnar deviation during a 20 minute period of word processing work. The measuring tool was an electrical goniometer, and was produced by Biometrics Cooperation. The results were as follows: 1. The wrist flexion and extension at resting starting position were not significantly different (p>.05), however the angle of radial and ulnar deviation were significantly different in standard and split keyboard use during word processing (p<.05). 2. In the initial 10 minutes, the dynamic angle of wrist flexion and extension were not significantly different (p>.05), however the dynamic angle of radial and ulnar deviation was significantly different in standard and split keyboard use during word processing (p<.05). These results suggest that the split keyboard is more optimal than the standard keyboard, because it prevented excessive ulnar deviation during word processing.