Iitake Tsuyoshi, Hioki Maya, Takahashi Hitoshi, Nunome Hiroyuki
Graduate School of Sports and Health Science, Fukuoka University, Fukuoka, Japan.
Faculty of Health Care and Medical Sports, Department of Rehabilitation, Teikyo Heisei University, Ichihara, Japan.
J Sports Sci. 2022 Oct;40(20):2217-2224. doi: 10.1080/02640414.2022.2139881.
We aimed to clarify the differences in soccer instep kicking dynamics between sex groups. The instep kicking of seven female (height: 160.3 ± 6.1 cm; mass: 54.3 ± 5.2 kg) and seven male (height: 173.0 ± 5.9 cm; mass: 70.0 ± 9.0 kg) players were recorded by a motion capture system (500 Hz). Joint moments of the kicking leg were computed and normalized by the body mass and height. Statistical parametric mapping was used to compare the entire kicking motion between the two groups. Significantly slower resultant ball velocity seen in female players was most likely explained by their significantly slower run-up velocity, shorter leg length and lower foot-ball velocity ratio. Female players exhibited significantly smaller knee joint moment in the latter part (80-86%) of kicking. Also, significantly smaller positive work done by knee extension moment and the ratio of work (knee extension/hip flexion) were found in female players. These results suggested that the suppressed knee extension moment action was identified as a key kinetic characteristic in the instep kicking of female players, and to compensate for this action, they more rely on the work due to hip flexion moment to execute the instep kicking.
我们旨在阐明不同性别群体在足球脚背踢球动力学方面的差异。通过动作捕捉系统（500Hz）记录了7名女性球员（身高：160.3±6.1厘米；体重：54.3±5.2千克）和7名男性球员（身高：173.0±5.9厘米；体重：70.0±9.0千克）的脚背踢球动作。计算踢球腿的关节力矩，并通过体重和身高进行归一化处理。使用统计参数映射来比较两组之间的整个踢球动作。女性球员踢出的球的合成速度明显较慢，这很可能是由于她们的助跑速度明显较慢、腿较短以及脚与球的速度比更低。女性球员在踢球后期（80%-86%）表现出明显较小的膝关节力矩。此外，女性球员的膝关节伸展力矩所做的正功以及功的比值（膝关节伸展/髋关节屈曲）也明显较小。这些结果表明，女性球员脚背踢球时膝关节伸展力矩作用的抑制被确定为关键的动力学特征，为了弥补这一作用，她们更多地依赖髋关节屈曲力矩所做的功来完成脚背踢球。
