Korean Journal of Applied Biomechanics (한국운동역학회지)

Korean Society of Applied Biomechanics (한국운동역학회)
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Kinematic Analysis of Cornering with Different Radius of Curve Course in Short Track Speed Skating

쇼트트랙 스피드 스케이팅 곡선주로의 반경 차이에 따른 운동학적 분석

  • Kim, Tae-Hoon (Department of Physical Education, Graduate School of Korea National Sport University) ;
  • Jun, Myung-Kyu (Department of Physical Education, College of Sport Science of Korea National Sport University) ;
  • Yoo, Si-Hyun (Department of Physical Education, Graduate School of Korea National Sport University) ;
  • Park, Sang-Kyoon (Department of Physical Education, College of Sport Science of Korea National Sport University)
  • 김태훈 (한국체육대학교 대학원 체육학과) ;
  • 전명규 (한국체육대학교 스포츠과학대학 체육학과) ;
  • 류시현 (한국체육대학교 대학원 체육학과) ;
  • 박상균 (한국체육대학교 스포츠과학대학 체육학과)
  • Received : 2013.04.30
  • Accepted : 2013.06.10
  • Published : 2013.06.30
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Abstract

The purpose of this study was to provide fundamental information for the enhancement of performance through kinematic analysis of cornering according to the radius of curve course in short track speed skating. To perform this study, six skaters: three narrow radius players(N, body mass: $56.0{\pm}7.2$ kg, height: $163.7{\pm}5.1$ cm, age: $21.3{\pm}1.5$ yrs) and three wide radius players(W, body mass: $61.0{\pm}9.5$ kg, height: $169.0{\pm}4.4$ cm, age: $20.0{\pm}1.7$ yrs). Three-dimensional motion analysis was performed on the section from the forth block starting to show the change of radius to the sixth block using eight infrared cameras(sampling frequency of 100 Hz for N and W players). The time of push-off was greater for N than for W(p<.05) while the radius of center of mass was greater for W than for N(p<.05). The flexion and extension of knee and hip joint were greater for N than for W(p<.05). The external rotation of left knee joint was greater for N than for W(p<.05). Based on the findings, a small radius by increasing the range of the flexion and extension of knee and hip joint with greater external rotation of left knee joint would be related to more efficient run at curve. It is expected that these results will be useful in developing a training program for enhancing performance of short track speed skating athletes.

Keywords

References

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