대한산업공학회지 (Journal of Korean Institute of Industrial Engineers)

  • 제39권2호
  • /
  • Pages.99-104
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  • 2013
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  • 1225-0988(pISSN)
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  • 2234-6457(eISSN)
대한산업공학회 (Korean Institute of Industrial Engineers)
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소프트 키보드의 터치 위치별 지각 불편도 및 근전도 분석

Analysis of Perceived Discomfort and EMG for Touch Locations of a Soft Keyboard

  • 최보리 (울산대학교 산업경영공학부) ;
  • 정기효 (울산대학교 산업경영공학부)
  • Choi, Bori (School of Industrial Engineering, University of Ulsan) ;
  • Jung, Kihyo (School of Industrial Engineering, University of Ulsan)
  • 투고 : 2013.01.11
  • 심사 : 2013.03.06
  • 발행 : 2013.04.15
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초록

With diversity of mobile services (e.g., messenger, and social network service) on smartphone, the demand of text input using a soft keyboard is increasing. However, studies on subjective and physiological responses of users for various touch locations are lacking. The present study investigated the ergonomic effects according to touch locations of a soft keyboard on smartphone. The experiment of the present study measured perceived discomfort using Borg's CR-10 scale and electromyography (EMG) on forearm (abductor pollicis longus, and extensor digitorum communis) and thumb (abductor pollicis brevis, and first dorsal interossei) muscles. Perceived discomfort was significantly varied from 0.7 (extremely weak discomfort) to 2.5 (weak discomfort) depending on touch locations. %MVC according to touch locations was only significant at abductor pollicis brevis which varied from 10% to 23%. The experimental results of the present study can be utilized in the ergonomic design of a soft keyboard.

키워드

참고문헌

  1. Borg, G. (1998), Borg's Perceived Exertion and Pain Scales, Champaign, IL : Human Kinetics.
  2. Chaffin, D. B., Andersson, G. B. J., and Martin, B. J. (1999), Occupational Biomechanics (3rd ed.), New York : John Wiley and Sons.
  3. Gustafsson, E., Johnson, P. W., and Hagberg, M. (2010), Thumb postures and physical loads during mobile phone use-A comparison of young adults with and without musculoskeletal symptoms, Journal of Electromyography and Kinesiology, 20, 127-135. https://doi.org/10.1016/j.jelekin.2008.11.010
  4. Jonsson, P., Johnson, P. W., Hagberg, M., and Forsman, M. (2011), Thumb joint movement and muscular activity during mobile phone texting-A methodological study, Journal of Electromyography and Kinesiology, 21, 363-370. https://doi.org/10.1016/j.jelekin.2010.10.007
  5. Karlson, A. (2006), Interface design for single-handed use of small devices, UIST 2006 Adjunct Proceeding.
  6. Kim, J. (2009), A study on mobile phone usability for touch phone design -Focus on User analysis of display size and fingering area, Journal of the Korean Society of Design Culture, 15(4), 141-149.
  7. Kim, J. and Jung, M. (1999), The comparison of sensitivity of numerical parameters for quantification of electromyography (EMG) signal, Journal of the Korean Institute of Industrial Engineers, 25(3), 330-335.
  8. Kim, K., Park, J., Kim, G., and Son, K. (2011), A Comparative evaluation about force and fatigue on thumb according to input type for repetitive use of mobile phone, Journal of the Biomedical Engineering Research, 32(4), 312-317. https://doi.org/10.9718/JBER.2011.32.4.312
  9. KISA(2011), Smart Phone Usage Statistics in Year 2011. Korea Internet and Security Agency.
  10. Kwon, O., You, H., and Jung, K. (2009), Identification of the maximum acceptable frequencies of upper-extremity motions in the sagittal plane. Human Factors and Ergonomics in Manufacturing, 19(3), 212-222. https://doi.org/10.1002/hfm.20149
  11. Lee, M. and Lee, G. (1981), An EMG analysis for estimating the individual capabilities of the rectus femoris muscle, Journal of the Korean Institute of Industrial Engineers, 7(2), 3-17.
  12. Park, Y. (2010), User Interface Design for One-handed Touch Interaction with Mobile Devices, Unpublished doctorial dissertation, Pohang : POSTECH.
  13. Park, Y. and Han, S. (2007), Effects of touch key location and size on onehanded thumb input, Proceedings of the 2007 Spring Conference of Ergonomics Society of Korea, 305-309.
  14. Ryu, T. (2011), Performance analysis of text entry with preferred one hand using smart phone touch-keyboard, Journal of the Ergonomics Society of Korea, 259-264.

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