对国内两名优秀女子撑竿跳高选手技术的生物力学分析
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Biomechanical analysis of the techniques of the two national best chinese women pole valting atheles
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    目的进一步认识撑竿跳高项目规律,提高撑竿跳高选手的成绩。方法对国内两名优秀女子撑竿跳高选手A、B的3次大赛的6次动作进行生物力学分析,采用定点定焦平面摄影的拍摄方法,运用APASsystem解析。结果B的3次比赛起跳速度损失率分别为23%、26%、20%,而A分别为16%、23%、18%,A的速度损失率都低于B;B的3次比赛的长摆时间分别为0.16s、0.16s、0.18s,而A分别为0.12s、0.10s、0.08s,B的长摆时间都长于A。结论B起跳技术比较差,A的起跳技术基本表现出"自由起跳"的特点;A较短的长摆时间不利于弯竿,建议从加强相关肌群力量出发,增加长摆时间。

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    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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邹亮畴,郭梁,邓京捷.对国内两名优秀女子撑竿跳高选手技术的生物力学分析[J].医用生物力学,2008,23(2):131-135

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