Kinematics analysis on the cross step skills of Chinese female javelin thrower lv Huihui

DOI

10.2991/peee-15.2015.40How to use a DOI?

Keywords

Biomechanics, The three-dimension picture analysis, Javelin Thrower, The cross step skills.

Abstract

The paper use the documents the mathematical statistics and the three-dimension picture analysis on the cross step skill of Lv Huihui, the champion of China Long Open in 2013 and get the kinematics parameters and summarize her skill features . The results show that Lv made a proper leaning back during the cross step stage. Her elbow angle is 146.4°, while the angle of world outstanding female javelin athletes is 160.2°, it has a big gap of 13.8°. In the horizontal velocity during the cross step, Lv Huihui lags behind world outstanding female athletes. The conclusion shows that Lv did not fully extend her elbow joint in the cross step stage, the elbow stress is not enough, throwing arm shoulder too loose; the speed of Lv need to be improved. Because the step size is too long, will effect postpone time of the force, thus affect the coherence of action, reduce the running speed and force effect, ultimately affect the performance in the competition; the long cross step time is the main reason for the loss of horizontal speed.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - M.R. Zhou
PY  - 2015/04
DA  - 2015/04
TI  - Kinematics analysis on the cross step skills of Chinese female javelin thrower lv Huihui
BT  - Proceedings of the 2015 International Conference on Power Electronics and Energy Engineering
PB  - Atlantis Press
SP  - 151
EP  - 152
SN  - 2352-5401
UR  - https://doi.org/10.2991/peee-15.2015.40
DO  - 10.2991/peee-15.2015.40
ID  - Zhou2015/04
ER  -