Coventry Evan, Ball Kevin, Parrington Lucy, Aughey Robert, McKenna Michael
a College of Sport and Exercise Science, Institute of Sport, Exercise and Active Living (ISEAL) , Victoria University , Melbourne , Australia.
J Sports Sci. 2015;33(15):1596-605. doi: 10.1080/02640414.2014.1003582. Epub 2015 Jan 26.
The punt kick is a fundamental skill used in several team sports; however, there has been a lack of research on how fatigue affects its technique. The purpose of this study was to determine the effects of short-term fatigue on punt-kicking performance. Eight elite and sub-elite Australian Football players performed maximal drop punt kicks on their preferred leg prior to, during and after a match-specific fatigue protocol. Optotrak Certus collected kinematic data from kick foot toe-off until ball contact. Repeated-measures analysis of variance showed a significant increase in 20 m sprint times after each short-term protocol, indicating fatigue. Foot speed did not significantly change with fatigue; however, increases in the range of motion at the pelvis and kicking thigh, along with increases in kicking thigh angular velocity, occurred. For the support leg, maximum knee flexion angular velocity increased while there was greater flexion found at the knee and hip, and greater range of motion at the knee. Players are able to make kinematic adaptations in order to maintain foot speed while punting for maximal distance after short-term efforts.
踢悬空球是几种团队运动中使用的一项基本技能；然而，关于疲劳如何影响其技术的研究一直不足。本研究的目的是确定短期疲劳对踢悬空球表现的影响。八名精英和次精英澳大利亚足球运动员在特定比赛疲劳方案之前、期间和之后，用他们偏好的腿进行最大距离的踢悬空球。Optotrak Certus系统收集了从踢球脚离地到球触地的运动学数据。重复测量方差分析表明，在每个短期方案后，20米短跑时间显著增加，表明出现了疲劳。脚部速度并没有随着疲劳而显著变化；然而，骨盆和踢球大腿的运动范围增加，同时踢球大腿的角速度增加。对于支撑腿，最大膝关节屈曲角速度增加，同时膝关节和髋关节的屈曲更大，膝关节的运动范围更大。运动员能够在短期努力后为了在踢悬空球时保持脚部速度以达到最大距离而做出运动学上的适应性调整。
