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http://dx.doi.org/10.5103/KJSB.2018.28.2.69

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)
Publication Information
Korean Journal of Applied Biomechanics / v.28, no.2, 2018 , pp. 69-78 More about this Journal
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
YANG Hak Seon vault; Yeo 2 vault; Twist velocity; Flight height;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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