대한의용생체공학회:의공학회지 (Journal of Biomedical Engineering Research)

  • 제35권3호
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  • Pages.35-41
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  • 2014
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  • 1229-0807(pISSN)
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  • 2288-9396(eISSN)
대한의용생체공학회 (The Korean Society of Medical and Biological Engineering)
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스키 시뮬레이터 운동 시 하지 운동특성 분석 및 관성센서 파라미터를 이용한 스키 숙련도 평가

Kinematic Analysis of Lower Extremity and Evaluation of Skill of Skier Using Parameters of Inertial Sensors During Ski Simulator Exercise

  • Kim, Jungyoon (Department of Biomedical Engineering, Yonsei University) ;
  • Ahn, Soonjae (Department of Biomedical Engineering, Yonsei University) ;
  • Park, Sunwoo (Department of Biomedical Engineering, Yonsei University) ;
  • Shin, Isu (Department of Biomedical Engineering, Yonsei University) ;
  • Kim, Gyoosuk (Korea Orthopedics & Rehabilitation Engineering Center) ;
  • Kim, Youngho (Department of Biomedical Engineering, Yonsei University)
  • 투고 : 2014.03.26
  • 심사 : 2014.06.03
  • 발행 : 2014.06.30
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초록

In this study, joint angles of the lower extremity and inertial sensor data such as accelerations and angular velocities were measured during a ski simulator exercise in order to evaluate the skill of skiers. Twenty experts and twenty unskilled skiers were recruited for the study. All expert skiers held the certificates issued by the Korea Ski Instructors Association. A three-dimensional motion capture system and two inertial sensors were used to acquire joint movements, heel acceleration and heel angular velocity during ski simulator exercises. Pattern variation values were calculated to assess the variations in ski simulator motion of expert and unskilled skiers. Integral ratio of roll angular velocity was calculated to determine the parallel alignment of the two feet. Results showed that ski experts showed greater range of motion of joint angle, peak-to-peak amplitude(PPA) of heel acceleration and PPA of heel angular velocity than unskilled skiers. Ski experts showed smaller pattern variations than unskilled skiers. In addition, the integral ratio of roll angular velocity in ski experts was closer to 1. Inertial sensor data measurements during the ski simulator exercises could be useful to evaluate the skill of the skier.

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참고문헌

  1. C.G. Kang, J.H. Kim, and Y.J. Kim, Skiing Exercises, Seoul, Korea: Taegeunmoonhwasa, 1999.
  2. Korea Ski Association, Alpine ski guide, Seoul, Korea: Hong Kyung, 2002, pp. 23-45.
  3. T. Yoneyama, H. Kagawa, A. Okamoto, and M. Sawada, "Joint motion and reacting forces in the carving ski turn compared with the conventional ski turn," Sports Engineering, vol. 3, pp. 161-176, 2000. https://doi.org/10.1046/j.1460-2687.2000.00060.x
  4. M.S. Hyeon, "The kinematical analysis of short turn in carving skiing," The Korean Journal of Physical Education, vol. 42, no. 6, pp. 995-1003, 2003.
  5. H. Sodeyama, M. Miura, K. Kitamura, and H. Matsui, "Study of displacement of a skier's center of gravity during a ski turn," in Biomechanics VB, Baltimore, U.S.A.: Univ. Park Press, 1976, pp. 271-276.
  6. S.D. Eun, and M.S. Hyun "The differences in the ski carving turn motion according to level of expertise," Korean Journal of Sport Biomechanics, vol. 20, no. 3, pp. 319-325, 2010. https://doi.org/10.5103/KJSB.2010.20.3.319
  7. C.D. Mote, and C.Y. Kuo, "Identification of knee joint models for varus-valgus and internal-external rotations: snow skiing experiments," Journal of Biomechanics, vol. 22, no. 3, pp. 245-259, 1989. https://doi.org/10.1016/0021-9290(89)90092-4
  8. S.J. Kim, "The effect of ski simulator learning on coordinative structure of body segments," The Korean Journal of Physical Education, vol. 37, no. 1 pp. 133-144, 1998.
  9. W. Gabriele, H.S. Charles, and A.W. Chad, "Physical-guidance benefits in learning a complex motor skill," Journal of Motor Behavior, vol. 30, no. 4, pp. 367-380, 1998. https://doi.org/10.1080/00222899809601351
  10. C.H. Nam, and B.H. Woo, "Kinematical analysis of up-down motion in ski simulator," Korean Journal of Sport Biomechanics, vol. 17, no. 3, pp. 41-49, 2007. https://doi.org/10.5103/KJSB.2007.17.3.041
  11. H.T. Lee, Y.J. Kim, and H.L. Roh, "Changes in the lower limb joint angle during the simulated skiing," Journal of Physical Therapy Science, vol. 24, no. 6, pp. 471-474, 2012. https://doi.org/10.1589/jpts.24.471
  12. A. Kondo, H. Doki, and K. Hirose, "An attempt of a new motion measurement method for alpine ski turns using inertial sensors," Procedia Engineering, vol. 34, pp. 421-426, 2012. https://doi.org/10.1016/j.proeng.2012.04.072
  13. K. Hirose, H. Doki, and A. Kondo, "Dynamic analysis and motion measurement of ski turns using inertial and force sensors," Procedia Engineering, vol. 60, pp. 355-360, 2013. https://doi.org/10.1016/j.proeng.2013.07.082
  14. S.H. Kim, and J.H. Lim, Scientific guidance on skiing and actuality, Seoul, Korea: Dae Kyung, 1994.
  15. B.L. Johnson, and J.K. Nelson, Practical measurements for evaluation in physical education. 4th edition, London, U.K.: Macmillan Pub. Co., 1986, pp. 236-239.
  16. L.M. Nashner, "Sensory, neuromuscular, and biomechanical contribuions to human balance," in Proc. APTA(American Physical Therapy Association) Forum, Alexandria, Virginia, June, 1989, pp. 5-12.
  17. R.B. Davis, S. Ounpuu, D. Tyburski, and J.R. Gage, "A gait analysis data collection and reduction technique," Human Movement Science, vol. 10, no. 5, pp. 575-587, 1991. https://doi.org/10.1016/0167-9457(91)90046-Z

피인용 문헌

  1. Kinematic Study of Lower Extremity Movements in Unskilled and Expert Snowboarders During Snowboard Simulator Exercises vol.36, pp.4, 2015, https://doi.org/10.9718/JBER.2015.36.4.109