Journal of the Ergonomics Society of Korea (대한인간공학회지)

Ergonomics Society of Korea (대한인간공학회)
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The Effect of Wearable Wrist Rest During Keyboard and Mouse Use

키보드와 마우스 사용시 착용식 손목 지지대 효과

  • Published : 2008.09.01
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Abstract

The goal of this study was to compare wrist posture, muscular loads and perceived comfort among wearable wrist rest (WR), general wrist rest(GR), no wrist rest(NR) during keyboard and mouse use. Thirteen subjects performed text editing task in three test conditions: wearable wrist rest(WR), general wrist rest(GR), no wrist rest(NR). During text editing task, the right wrist posture was recorded by an electrogoniometer and the muscle activity in upper trapezius, anterior deltoid, extensor digitorum, extensor carpi ulnaris were recorded by electromyography. After all of the tests, the subjects rated perceived comfort. Working with wearable wrist rest(WR), compared to no wrist rest(NR) and general wrist rest(GR), decreased wrist radial/ulnar deviation and also decreased muscle activity in upper trapezius and anterior deltoid. At the same time, in work with wearable wrist rest(WR), the subjects rated more comfort at 5 of 8 body locations(shoulder, upper arm, wrist, hand, body).

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References

  1. Albin, T., "Effect of wrist rest use and keyboard tilt on wrist angle while keying", Proceeding of the 13th Triennial Conference of the International Ergonomics Association, 1997
  2. Amell, T. and Kumar, S., Cumulative trauma disorders and keyboarding work, International Journal of Industrial Ergonomics, 25(1), 69-78, 2000 https://doi.org/10.1016/S0169-8141(98)00099-7
  3. Basmajian, J. V. and Blusmenstein, R., Electrode placement in electromyographic biofeedback. In J.V. Basmajian (Ed), Biofeedback, Principles and Practice for Clinicians, pp. 363-378, Williams & Wilkins, 1983
  4. Basmajian, J. V. and De Luca, C. J., Muscles Alive. Their functions Revealed by Electromyography, 5th ed., Williams & Wilkins, 1985
  5. Bendix, T. and Jessen, F., Wrist support during typing-a controlled, electromyographics study, Applied Ergonomics, 17(3), 162-168, 1986 https://doi.org/10.1016/0003-6870(86)90001-3
  6. Bernard, B., Musculoskeletal Disorders and Workplace Factors. Retrieved 8.9.01, 2001, 1997
  7. Bucholz, B. and Wellman, H., Practical operation of a biaxial goniometer at the wrist joint, Human Factors, 39(1), 119-130, 1997 https://doi.org/10.1518/001872097778940696
  8. Chaffin, D. B. and Anderson, G. B. J., Occupational biomechanics, 2nd ed., Wiley Interscience, 1991
  9. Cook, C., Burgess-Limerick, R. and Papalia, S., The effect of wrist rests and forearm support during keyboard and mouse use, International Journal of Industrial Ergonomics, 33(5), 463-472, 2004 https://doi.org/10.1016/j.ergon.2003.12.002
  10. Damann, E. A. and Kroemer, K. H. E., "Wrist posture during computer mouse usage", Proceedings of the Human Factors and Ergonomics Society, 1(pp. 625-629), Santa Monica. CA, 1995
  11. Dennerlein, J. T., Dimarino, M. H., Becker, T. and Johnson, P., "Wrist and shoulder muscle activity changes across computer tasks", Proceedings of the 46th Human Factors and Ergonomics Society Annual Meeting, 2002
  12. Dennerlein, J. T. and Johnson, P. W., Different computer tasks affect the exposure of the upper extremity to biomechanical risk factors, Ergonomics, 49(1), 45-61, 2006 https://doi.org/10.1080/00140130500321845
  13. Fahrbach, P. and Chapman, L., VDT work duration and musculoskeletal discomfort, AAOHN Journal, 28(1), 32-36, 1990
  14. Gerr, F., Marcus, M., Ensor, C., Kleinbaum, D., Cohen, S., Edwards, A., Gentry, E., Ortiz, D. J. and Monteilh, C., A prospective study of computer users: I. Study design and incidence of musculoskeletal symptoms and disorders, American Journal of Industrial Medicine, 41, 221-235, 2002 https://doi.org/10.1002/ajim.10066
  15. Greene, W. B. and Heckman, J. D., The Clinical Measurement of Joint motion.(Ed), American Academy of Orthopaedic Surgeons, Rosemont, IL, 1994
  16. Gustafsson, E. and Hagberg, M., Computer mouse use in two different hand positions; exposure, comfort, exertion, and productivity, Applied Ergonomics, 34(2), 107-113, 2003 https://doi.org/10.1016/S0003-6870(03)00005-X
  17. Hjelm, E., Karlkvist, L., Hagberg, M., RIsberg, E., Isaksson, A. and Toomingas, A., "Working conditions and musculoskeletal disorders amongst male and female computer operators", Proceedings of the IEA 2000/HFES 2000 Conference, 2000
  18. Hedge, A. and Powers, J. R., Wrist postures while keyboarding: effects of a negative slope keyboard system and full motion arm supports, Ergonomics, 38(3), 508-517, 1995 https://doi.org/10.1080/00140139508925122
  19. Hedge, A., Muss, T. and Barrero, M., Comparitive Study of Two Computer Mouse Designs - Department of Design and Environmental Analysis, Cornell University. Ithaca, NY, 1999
  20. Herington, T. N. and Morse, L. (Eds.), Occupational Injuries: Evaluation, Management and Prevention. Mosby, St. Louis USA, 1995
  21. Karlqvist, L., Hagberg, M. and Selin, K., Variation in upper limb posture and movement during word processing with and without mouse use, Ergonomics, 37(7), 1261-1267, 1994 https://doi.org/10.1080/00140139408964904
  22. Keir, P., Bach, J. and Rempel, D., Effects of finger posture on carpal tunnel pressure during wrist motion, Journal of Hand Surgery, 23A(6), 1004-1009, 1998
  23. Kilbom, A., Repetitive work of the upper extremity, Part 1, Guideline for the practitioner, International Journal of Industrial Ergonomics, 14(1-2), 51-57, 1994 https://doi.org/10.1016/0169-8141(94)90005-1
  24. Parsons, C., "Use of wrist rest by data input VDU operators", Proceedings of the Ergonomics Society. 1991
  25. Perotto, A., Anatomical Guide for the Electromyographer: The Limbs and Trunk, 3rd ed., Charles C Thomas, 1994
  26. Rempel, D., Manojilovic, R., Levinsohn, D., Bloom, T. and Gordon, L., The effect of wearing a flexible wrist splint on carpal tunnel pressure during repetitive hand activity, Journal of Hand Surgery, 19A(1), 106-110, 1994
  27. Rempel, D. and Gordon, L., Effects of forearm pronation/supination on carpal tunnel pressure, Journal of Hand Surgery, 23A(1), 38-42, 1998
  28. Zipp, P., Recommendations for the standardization of lead positions in surface electromyography, European Journal of Applied Physiology, 64, 417-420, 1982
  29. 박경수, 김효준, 근골격계 질환 예방을 위한 마우스 작업의 손목지지대 개선, 대한인간공학회 2006년 춘계학술대회논문집, 2006
  30. 안대진, 한국인의 연령을 고려한 VDT workstation 설계, 한국 과학기술원 석사학위논문, 2004
  31. 신종현, 박민용, 김정룡, 작업안정성 향상을 위한 신개념 VDT 작업용 의자의 인간공학적 설계, Journal of the Korean Institute of Industrial Engineers, 25(4), 459-465, 1999
  32. 홍기범 외, VDT 작업에서의 근골격계 질환 예방을 위한 새로운 팔 지지대 제안, 대한인간공학회지, 25(2), 1-9, 2006

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