Dynamics of submaximal effort soccer instep kicking
Dynamics of submaximal effort soccer instep kicking
复制标题
次最大努力足球脚背踢球的动力学
DOI：
10.1080/02640414.2018.1470216
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发表时间：
2018
影响因子：
3.4
通讯作者：
H. Akima
中科院分区：
文献类型：
--
作者：
H. Nunome;Koichiro Inoue;Kohei Watanabe;Takahito Iga;H. Akima
摘要在足球比赛中，运动员经常需要控制踢球的球速。然而，很少有信息是与踢在不同的努力水平的基本素质。我们的目的是说明足球脚背踢球过程中次最大努力时踢球腿的节段动力学。用运动捕捉系统（500 Hz）记录了8名有经验的大学生足球运动员（身高172.4 ± 4.6 cm，体重63.3 ± 5.2 kg）在50%、75%和100%努力水平下的脚背踢球动作，同时用一对光电管监测了所得的球速。在三个努力水平之间，动力学调整在近端和远端节段中被清楚地识别出，由于合成的关节和相互作用力矩，具有显著不同的（大效应量）角脉冲。此外，球员往往击中一个偏离中心点的球使用一个更中间的接触点的脚和脚在一个不太直立的位置在较低的努力水平。这些结果表明，球员控制他们的腿摆动的上下文中的近端到远端节段顺序系统，并添加一些微调的合成球的速度，通过改变球的冲击方式。
ABSTRACT During a soccer match, players are often required to control the ball velocity of a kick. However, little information is available for the fundamental qualities associated with kicking at various effort levels. We aimed to illustrate segmental dynamics of the kicking leg during soccer instep kicking at submaximal efforts. The instep kicking motion of eight experienced university soccer players (height: 172.4 ± 4.6 cm, mass: 63.3 ± 5.2 kg) at 50, 75 and 100% effort levels were recorded by a motion capture system (500 Hz), while resultant ball velocities were monitored using a pair of photocells. Between the three effort levels, kinetic adjustments were clearly identified in both proximal and distal segments with significantly different (large effect sizes) angular impulses due to resultant joint and interaction moments. Also, players tended to hit an off-centre point on the ball using a more medial contact point on the foot and with the foot in a less upright position in lower effort levels. These results suggested that players control their leg swing in a context of a proximal to distal segmental sequential system and add some fine-tuning of the resultant ball velocity by changing the manner of ball impact.
影响因子：
3.4
作者：
Nunome, H;Ikegami, Y;Sano, S
通讯作者：
Sano, S