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Feasibility of a New Vault Technique through Kinematic Analysis of Yeo 2 and YANG Hak Seon Vaults

  • Song, Joo-Ho (Korea Institute of Sport Science) ;
  • Park, Jong-Hoon (Division of Tourism & Sports Leisure, Catholic Kwandong University) ;
  • Kim, Jin-Sun (Department of Physical Education, Yonsei University)
  • Received : 2018.01.30
  • Accepted : 2018.04.30
  • Published : 2018.06.30

Abstract

Objective: The purpose of this study was to investigate the feasibility of a new vault technique through a kinematic comparison of the YANG Hak Seon and Yeo 2 vaults. Method: The photographic images of the YANG Hak Seon and Yeo 2 vaults were collected using a high-speed camera, and their kinematic characteristics were analyzed using three-dimensional image analysis. Results: During the post-flight phase of the Yeo 2 and YANG Hak Seon vaults, the time of flight, height of flight, and flight distance were similar. At the peak of the post-flight phase, the trunk rotation angle of the YANG Hak Seon vault rotated $457^{\circ}$ more than did the Yeo 2 vault. During the post-flight descending period, the twist velocity of the trunk was much faster with the YANG Hak Seon vault ($1,278^{\circ}/s$) than with the Yeo 2 vault ($1,016^{\circ}/s$). Conclusion: To succeed in the new technique, the average twist velocity during post-flight must be maintained at $1,058^{\circ}/s$ and the twist velocity must be increased from the ascending phase.

Keywords

References

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