Special Take-Off Technical Diagnosis of Zi’ang Dong, the Gymnasiade Champion in Men’s High Jump

DOI

10.2991/978-94-6463-044-2_105How to use a DOI?

Keywords

track and field; high jump; kinematic analysis; Digital modeling

Abstract

In the case study of Dong’s techniques, and make suggestions for him and other athletes to help improve the overall high jump level. And, help promote the construction of education informatization. This thesis uses Video shooting, Digital modeling and other research methods. Conclusion: (1) Dong’s technical characteristics include: First, the relative values of H0 and H1 are great, and the take-off time is short in the take-off stage. Second, the knee angle of the take-off leg is large at touch-down, and the muscle flexibility and plyometric contraction are excellent. Fourth, the swing leg swings fast. (1) Dong’s technical weaknesses include: First, the take-off leg support is weak. Second, the velocity conversion rate is low, the vertical velocity is slow, the flight angle is small, and the vertical working distance of the center of mass is short in the take-off stage. Third, the economy of bar clearance is below expectation. (3) The reasons for Dong’s failed jumps include: First, the velocity conversion rate drops in the take-off stage. Second, the maximum swing speed of the swing leg decreases, and the folding degree and braking height are insufficient at take-off. Third, the knee extension of the take-off leg is not enough, and the hip and knee are not fully stretched at take-off. In the take-off training of teenage high jumpers, it is advised to: make the extension-swing coordination more consistent, coherent, and stable to improve the velocity conversion rate while strengthening the supporting and extension abilities of the take-off leg and the rapid swing and high swing braking abilities of the swing leg; and adjust the take-off distance based on the horizontal distance between an athlete’s highest point and the bar (HD), the decline in which suggests higher bar clearance efficiency and H2 utilization, to reduce the likelihood of failure.

Copyright

© 2022 The Author(s)

Open Access

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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TY  - CONF
AU  - Jiawei Liu
AU  - Tinggang Yuan
AU  - Jinbao Hou
PY  - 2022
DA  - 2022/12/27
TI  - Special Take-Off Technical Diagnosis of Zi’ang Dong, the Gymnasiade Champion in Men’s High Jump
BT  - Proceedings of the 2022 3rd International Conference on Modern Education and Information Management (ICMEIM 2022)
PB  - Atlantis Press
SP  - 839
EP  - 847
SN  - 2667-128X
UR  - https://doi.org/10.2991/978-94-6463-044-2_105
DO  - 10.2991/978-94-6463-044-2_105
ID  - Liu2022
ER  -