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The Research of Our National Elite Female Combined-events Athlete Haili Liu’s Javelin Throwing Technique Kinematic Characteristic

Author: ChenXiangWei
Tutor: LiXin
School: Shenyang Institute of Physical
Course: Physical Education and Training
Keywords: Javelin Technology Three-dimensional camera Kinematic analysis
CLC: G824.3
Type: Master's thesis
Year: 2010
Downloads: 54
Quote: 0
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Abstract


Objective: Liu Haili World Elite Female , there is a big gap on the total score , especially in the individual throwing items out of her great influence . Kinematic point , spatial and temporal characteristics of our excellent athlete Liu Haili Javelin comprehensive quantitative analysis to provide a basis for the formulation of scientific training methods . Methods: Shenyang Sport University Women 's all-around excellent athlete Liu Haili Javelin action , two SONY cameras three-dimensional shooting , the use of APAS video analysis system analysis . SPSS10.0 and Excel office software for statistical analysis . Results: (1 ) Liu Haili 6 throwing the javelin process , throwing technique instability , manifested in each technical aspects of the more obvious differences . (2 ) Liu Haili run-up speed is faster, but the the speed loss rate is too large , step cross between technology convergence is not good and can not be fully prepared for the final force . (3) Liu Haili body too fast , too much forward momentum , resulting in the torso backward bending angle is too small , the Final Push of magnitude too small to affect the Final Push . (4 ) Liu Haili finally forcibly phase right foot landing buffer is too large, the buffer phase transition to the hurdle stage a long time , affect the momentum transfer and the braking effect . ( 5 ) The rate of loss of speed in the last step of the body center of gravity is too large. ( 6 ) Liu Haili landing in the left foot shot instantly left knee angle is too small , bad left brake support action , the force of the upper body prematurely , reducing the distance of the throwing arm force .

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CLC: > Culture, science,education, sports > Sports > Athletics > Throwing > Javelin
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