Xu Wangyang, Gong Bo, Zhang Xinbi, Zhang Diyan
School of Athletic Performance, Shanghai University of Sport, Shanghai, China.
School of Kinesiology and Health, Capital University of Physical Education and Sports, Beijing, China.
Front Sports Act Living. 2025 Jul 10;7:1605545. doi: 10.3389/fspor.2025.1605545. eCollection 2025.
This study aims to examine the correlation between knee joint kinematics and kicking distance in soccer players across different kicking phases. Twenty-six soccer players participated in the testing for this study. The lower limb posture data for each participant were collected using IMUs, and modeling analysis was conducted using OpenSim. During the approach phase, the extremum angle of the second knee flexion ( = 0.152, = 0.041), as well as the ROM of the second knee extension ( = 0.169, = 0.023) and the average angular velocity of the second knee extension ( = 0.185, = 0.013), were positively correlated with the kicking distance. During the swing phase, the extremum angle ( = 0.178, = 0.016) and the average angular velocity ( = 0.283, < 0.001) of knee extension were positively correlated with the kicking distance. The findings suggest an association between specific knee kinematic patterns and the ability to achieve longer kicking distances. These kinematic patterns are characterized by: larger flexion angle during the ground contact phase of the approach; faster extension velocity and greater extension during the push-off; as well as rapid extension velocity and a larger final flexion angle during the swing.
本研究旨在探讨不同踢球阶段足球运动员膝关节运动学与踢球距离之间的相关性。26名足球运动员参与了本研究的测试。使用惯性测量单元（IMUs）收集每位参与者的下肢姿势数据，并使用OpenSim进行建模分析。在助跑阶段，第二次膝关节屈曲的极值角度（=0.152，=0.041），以及第二次膝关节伸展的活动范围（=0.169，=0.023）和第二次膝关节伸展的平均角速度（=0.185，=0.013）与踢球距离呈正相关。在摆动阶段，膝关节伸展的极值角度（=0.178，=0.016）和平均角速度（=0.283，<0.001）与踢球距离呈正相关。研究结果表明特定的膝关节运动学模式与实现更远踢球距离的能力之间存在关联。这些运动学模式的特点是：助跑触地阶段有更大的屈曲角度；蹬地阶段有更快的伸展速度和更大的伸展幅度；以及摆动阶段有快速的伸展速度和更大的最终屈曲角度。
