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目的:人造草皮的全球性应用以及运动员参与程度促使我们有必要研究它对足球运动员的损伤因素。本研究旨在调查在天然草皮与人工草皮上女足运动员与草皮之间的相互作用。方法:8位大学水平的女足运动员分别在常规天然草皮球场(NT)和3G人工草皮球场(AT)上表演非预期30o和60o切削动作。用一台自动动作捕捉系统(Coda Sport CXS System,200Hz)对切割动作减速早期3D踝和膝关节角度进行量化,从足部着地到承重达到着地阶段20%对其进行确定。用双因素(切割角度,草皮)方差对其差异进行统计学分析,α水平设为p<0.05,并报告Cohen’sd效应量。结果:在人工草皮上发现有膝外翻和内旋转减少的趋势,这表明膝损伤风险降低。这一发现说明人工草皮并不亚于天然草皮,并可能会降低膝损伤风险。在人工草皮上足部着地时踝关节对背屈和内翻程度增加影响很大,踝关节内翻和外旋转程度增大也受到很大影响。结论:这些发现为女球员在人工草皮上踢球提供了支持,且并未证明在人工草皮上踢球损伤风险会增加。脚踝反应不明确,需要进一步研究。这一初步研究为更细致的研究提供了平台;强调随着人工草皮引入,探索足球运动及损伤的生物力学变化非常重要。
Aims: The global application of artificial turf and the participation of athletes make it necessary for us to study its damage factors to footballers. The aim of this study was to investigate the interaction between women football players and turf on natural and artificial turf. METHODS: Eight college-level women football players performed unintended 30 ° and 60 ° cutting operations at a conventional natural turf pitch (NT) and a 3G artificial turf pitch (AT), respectively. A 3D motion capture system (Coda Sport CXS System, 200Hz) was used to quantify the early 3D ankle and knee joint decelerations of the cutting motion and to determine the 20% of the loading phase from the foot to the load-bearing stage. Differences were statistically analyzed using a two-factor (cut angle, turf) variance with α level set to p <0.05 and reported Cohen’s effect. Results: There was a trend of reduced knee valgus and internal rotation on artificial turf, indicating a reduced risk of knee injury. This finding suggests that artificial turf is as good as natural turf and may reduce the risk of knee injury. Ankle joints strongly affect the degree of dorsiflexion and varus, and the ankle varus and external rotation are also greatly affected by the artificial turf on the foot. Conclusion: These findings provide support for women players playing artificial turf and have not shown any increased risk of kick damage on artificial turf. Ankle reaction is not clear, need further study. This preliminary study provides a platform for more detailed research; emphasizing the importance of exploring biomechanical changes in football and injury with the introduction of artificial turf.