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파지 폭과 손 크기에 따른 각 손가락이 총 악력에 미치는 영향 분석
Evaluation of Individual Finger Force to Grip Strength in Various Grip Spans and Hand Sizes

정명철    (아주대학교 산업정보시스템공학부   ); 김대민    (성균관대학교 시스템경영공학과   ); 공용구    (성균관대학교 시스템경영공학과  );
  • 초록

    In this study, six grip spans (45mm-65mm) were tested to evaluate the effects of handle grip span and user's hand size on maximum grip strength, individual finger force, and subjective ratings of comfort using a digital dynamometer with individual force sensors. Forty-six males were assigned into three hand size groups according to their hand lengths. Results showed that overall 55mm and 50mm grip spans were the most comfortable sizes and associated with the highest grip strength in the maximum grip force exertions, whereas 65mm grip span was rated as the least comfortable size as well as the lowest grip strength. In the interaction effect of grip span and hand size, small and middle hand sized participants rated the best preference and the least preference grip spans differently with large hand sized participants. With respect to the analysis of individual finger force, the middle finger force was the strongest and the highest contribution to the total finger force, followed by ring, index and little fingers. In addition, it was noted that each finger had a different optimal grip span for exerting maximum force resulting in a bowed contoured shaped handle for two-handle hand tools. Thus, the grip spans for two-handle hand tools might be designed according to the users' hand and finger anthropometrics to maximize performance and subjective perception of comfort.


  • 주제어

    Individual finger force .   Hand size .   Grip span .   Two-handle tool designs.  

  • 참고문헌 (17)

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    4. Eksioglu, M., Relative optimum grip span as a function of hand anthropometry, International Journal of Industrial Ergonomics, 34, 1-12, 2004 
    5. Fransson, C. and Winkel, J., Hand strength: The influence of grip span and grip type, Ergonomics, 34, 881-892, 1991 
    6. Grant, K. A., Habes, D. J. and Steward, L. L., An analysis of handle designs for reducing manual effort: The influence of grip diameter, International Journal of Industrial Ergonomics, 10, 199-206, 1992 
    7. Harkonen, R., Piirtomaa, M. and Alaranta, H., Grip strength and hand position of the dynamometer in 204 Finnish adults, Journal of Hand Surgery, 18B, 129-132, 1993 
    8. Hazelton, F. T., Smidt, G. L., Flatt, A. E. and Stephens, R. I., The influence of wrist position on the force produced by the finger flexors, Journal of Biomechanics, 8, 30-306, 1975 
    9. Kong, Y. K. and Lowe, B. D., Optimal cylindrical handle diameter for grip force tasks, International Journal of Industrial Ergonomics, 35, 495 -507, 2005a 
    10. Kong, Y. K. and Lowe, B. D., Evaluation of handle diameters and orientations in a maximum torque task, International Journal of Industrial Ergonomics, 35, 1073-1084, 2005b 
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    13. Ohtsuki, T., Inhibition of individual fingers during grip strength exertion, Ergonomics, 24(1), 21-36, 1981 
    14. Petrofsky, J. S., Williams, C., Kamen, G. and Lind, A. R., The effect of handgrip span on isometric exercise performance, Ergonomics, 23(12), 1129-1135, 1980 
    15. Pheasant S. and Haslegrave C. M., Bodyspace: Anthropometry, Ergonomics, and the Design of Work, 3rd ed., CRC press, Taylor & Francis, 2006 
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    17. Talsania, J. S. and Kozin, S. H., Normal digital contribution to grip strength assessed by a computerized digital dynamometer, The Journal of Hand Surgery, 23B(2), 162-166, 1998 
  • 이 논문을 인용한 문헌 (3)

    1. Kong, Yong-Ku ; Sohn, Seong-Tae ; Kim, Dae-Min ; Jung, Myung-Chul 2009. "Grip Force, Finger Force, and Comfort analyses of Young and Old People by Hand Tool Handle Shapes" Journal of the Ergonomics Society of Korea = 大韓人間工學會誌, 28(2): 27~34     
    2. 2013. "" Journal of the Ergonomics Society of Korea = 大韓人間工學會誌, 32(6): 503~509     
    3. 2016. "" Journal of the Ergonomics Society of Korea = 大韓人間工學會誌, 35(5): 413~423     

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