Department of Kinesiology, Arizona State University, Tempe, AZ, USA.
Sports Biomech. 2012 Sep;11(3):382-90. doi: 10.1080/14763141.2012.661757.
The purpose of this study was to determine whether joint velocities and segmental angular velocities are significantly correlated with ball velocity during an instep soccer kick. We developed a deterministic model that related ball velocity to kicking leg and pelvis motion from the initiation of downswing until impact. Three-dimensional videography was used to collect data from 16 experienced male soccer players (age = 24.8 +/- 5.5 years; height = 1.80 +/- 0.07m; mass = 76.73 +/- 8.31 kg) while kicking a stationary soccer ball into a goal 12 m away with their right foot with maximal effort. We found that impact velocities of the foot center of mass (CM), the impact velocity of the foot CM relative to the knee, peak velocity of the knee relative to the hip, and the peak angular thigh velocity were significantly correlated with ball velocity. These data suggest that linear and angular velocities at and prior to impact are critical to developing high ball velocity. Since events prior to impact are critical for kick success, coordination and summation of speeds throughout the kicking motion are important factors. Segmental coordination that occurs during a maximal effort kick is critical for completing a successful kick.
本研究旨在确定在脚背踢球时，关节速度和节段角速度与球速是否显著相关。我们开发了一种确定性模型，该模型将球速与从下挥开始到撞击时的踢腿和骨盆运动相关联。三维录像技术用于从 16 名经验丰富的男性足球运动员（年龄= 24.8 +/- 5.5 岁；身高= 1.80 +/- 0.07m；体重= 76.73 +/- 8.31kg）收集数据，他们用右脚最大力将一个静止的足球踢向 12 米远的球门。我们发现，质心（CM）的撞击速度、脚 CM 相对于膝盖的撞击速度、膝盖相对于臀部的峰值速度以及峰值大腿角速度与球速显著相关。这些数据表明，撞击前后的线性和角速度对于产生高球速至关重要。由于撞击前的事件对踢球成功至关重要，因此在整个踢球运动中协调和汇总速度是重要因素。最大努力踢球时发生的节段协调对于完成成功的踢球至关重要。
