Biomechanical analysis of the techniques of the two national best chinese women pole valting atheles
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    Abstract:

    Objectives The aims of the study are to evaluate kinematic characteristics of the pole valting in order to enhance the performance level of the athletes. Methods To perform biomechanical analysis on pole-valting techniques of 2 national elite women. During the experiment, the camera is in the fixed point and with the invariable focus and motions are analyzed with the APAS system. Results The loss in rate of B’s horizontal velocity at the moment of take-off in three attemps is 23%,26% and 20%, respectively; while that of As’ are lower, with 16%,23% and 18%, correspondingly. B’s times of three attempts are 0.16 s, 0.16 s and 0.18 s in the phases of long swinging; while that of As’ are correspondingly shorter with 0.12 s, 0.10 s and 0.08 s. Conclusions The kinematic analysis shows that A’s technology is superior to B’s at take-off moment, A’s technology is consistent with the character of "free taking off". The time period of A in the phase of long swing is shorter than B, what suggests adisadvantage to bend the pole, our analysis suggestions that specific strengthening exercise is needed to enhance muscle strength of specific muscle groups and prolong the time period in the phase of long swing.

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. Biomechanical analysis of the techniques of the two national best chinese women pole valting atheles[J]. Journal of medical biomechanics,2008,23(2):131-135

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