Keyboard Frame의 평면경사각과 측면경사각 및 Keypad 평면회전각의 변화가 Typing 수행도에 미치는 영향에 관한 연구

One more many more criteria for a design of ergonomic keyboard-slope angle

  • 이면우 (서울대학교 산업공학과) ;
  • 전영호 (홍익대학교 산업공학과) ;
  • 장성록 (서울대학교 산업공학과) ;
  • 이도준 (서울대학교 산업공학과) ;
  • 최재호 (서울대학교 산업공학과) ;
  • 김대철 (서울대학교 산업공학과) ;
  • 지철규 (서울대학교 산업공학과) ;
  • 박현규 (서울대학교 산업공학과)
  • 발행 : 1990.04.01

초록

Occupational disease among typists such as Carpal Tunnel Syndrome(CTS) and tendonitis has increased along with rapid expansion of office automation. During typing, the posture can be defined as forearm pronation, ulnar abduction, wrist extension and finger flexion. The CTS results from awkward posture between forearm-wrist-hand and the keyboard arrangement. Therefore, ergonomic principles should be emphasized in keyboard design. The objective of the study is to improve keyboard design by analyzing anatomical posture of forearm and hand during typing. An experimental study was performed to investigate relationships between a keyboard and typing performance. Results showed that typing performance is dependent to angles and slopes of a keyboard. Statistical analysis indicated that the suggested ergonomic keyboard improved typing speed significantly(17%).

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