右腿蹬伸和左腿踢摆脱节，动作不协调。
Right leg and left leg kicked out of vegetables, fruits crimes section, uncoordinated movements.
左腿强有力的支撑与快速蹬伸与投掷效果高度相关；
The firm supporting and rapid extending of left leg are highly correlated with throwing distance.
结果：通过辅助杠铃架，用测力台可实施静力性蹬伸最大力量、疲劳特性的测试；
RESULTS:Force platform could be used to test the static maximum force and the fatigue characteristics of the muscle during stand up by an additional bar frame .
跳段是把握蹬伸时机，以强有力的蹬伸获取尽量大的垂直速度和合理的腾起角度。
Jumping is grasping the chance to get the quickest vertical speed and reasonable jumping angel with powerful pressing and stretching.
着重讨论了最大力值，蹬伸时间，重心腾空高度等主要生物力学指标的变化规律。
The change rules of maximum force, stretching time, maximum height of centre of gravity, etc. in SJ are discussed respectively.
在时间方面，跳跳箱时的缓冲时间和蹬伸时间都明显大于跳远的缓冲时间和蹬伸时间。
In time aspect, vaulting box, in the cushion time and the pedal extend in the time obviously to be bigger than the long jump.
跳远起跳过程中，同一肌肉在缓冲期的表面积分肌电值大于蹬伸期的表面积分肌电值。
Long Jump during the same period in the buffer surface of muscle IEMG value is greater than kicking IEMG values of the surface.
开始动作如图所示：两臂伸直，背部保持平直，两腿充分蹬伸，脚掌置于健身球的球体之上。
Start as shown with the arms extended, back flat, legs fully extended and the balls of the feet on the Swiss ball.
增加右腿腿部力量专门训练，加强右腿的蹬伸力量、蹬伸幅度及速度，获得较大的蹬地反作用力。
Increases the right leg thigh strength specialized training, strengthens right leg's pedal to extend the strength, the pedal to extend the scope and the speed, obtains the big pedal reacting force.
结果表明：我国优秀女子铅球运动员在滑步阶段，左腿有效摆动不足，右腿蹬伸力量、速度不佳。
The result shows that the effective swinging of left leg is insufficient and extending strength of right leg is not good at the stage of sliding.
第九届全运会季军曾小玲在跨栏步技术上存在跨栏腿蹬伸不足、下栏距离长、身体总重心起伏大等问题。
Zeng Xiaoling , the third place , had some problem , such as insufficient stretching , too long S2 , too large alteration of gravity center.
起跑技术不但要正确，而且还要符合运动员的自身特点才有可能获得最佳蹬伸效果，在起跑上就领先于对手。
Start technology not only to correct, but also to meet the athletes of their own characteristics can be obtained Xinag best results, at the starting line on the leading opponents.
结果表明：影响标枪出手速度的首要因素是标枪离手时的左膝角，说明左腿迅速而充分的蹬伸对出手速度起着重要的影响作用。
The results showed that the first factor is the Angle of the left knee when releasing. It is proved that rapid and full push of the left leg has a great effect on the release speed.
结果表明：影响标枪出手速度的首要因素是标枪离手时的左膝角，说明左腿迅速而充分的蹬伸对出手速度起着重要的影响作用。
The results showed that the first factor is the Angle of the left knee when releasing. It is proved that rapid and full push of the left leg has a great effect on the release speed.
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