摘要
目的:探讨8周FIFA 11+练习对青少年校园足球运动员膝关节等速肌力的影响。方法:将16名初中男子足球队队员随机分为FIFA 11+练习组和对照组,每组8人。所有队员的踢球优势侧均为右侧。FIFA 11+组每周进行2次FIFA 11+练习,均安排在训练前的热身阶段;对照组则进行球队日常热身练习。实验持续8周,比较实验前后FIFA 11+组和对照组膝关节在60°/s和180°/s两个角速度下等速肌力变化幅度(△=实验后-实验前)的差异。结果:8周干预后,FIFA 11+组非优势侧左膝关节60°/s屈曲时的腘绳肌峰值力矩、相对峰值力矩、峰值功率、相对峰值功率增加幅度均显著高于对照组(P<0.05,P<0.01),优势侧右膝关节未见显著性变化(P>0.05)。左右两侧膝关节60°/s伸展时的股四头肌等速肌力变化也未见显著性差异(P>0.05)。8周干预后,两侧膝关节180°/s时的等速肌力变化均无显著性差异(P>0.05)。结论:8周FIFA 11+练习可显著改善青少年校园足球运动员非优势侧膝关节腘绳肌的肌力。
Objective To explore the effect of FIFA 11+ on isokinetic knee strength of youth ama-teur football players. Methods Sixteen youth amateur football players from the same junior middleschool were randomly and equally divided into an FIFA 11+ and a control group. The dominant kick-ing legs of all players were the right ones. All players in the FIFA 11+ group practiced FIFA 11+twice a week as a warm-up program before starting regular training,while the control group kept theirregular warm-up practice for the whole study lasting for eight weeks. The gap in isokinetic kneestrength before and after the intervention was analyzed and compared between groups. Concentric iso-kinetic test protocols for knee joints were used to measure the knee flexor and extensor musclestrength at two angular velocities of 60°/s and 180°/s. Results After the intervention,the improvement of the peak torque,relative peak torque,peak power and relative peak power of the left knee flexion(non-dominant hamstrings) at 60°/s was more significant in the FIFA 11+ group,compared with the controlgroup(P<0.05 or P<0.01). On the contrary,no similar significance was found in the right legs(P>0.05).There were also no significant changes in the isokinetic tests of the left and right knee extensors(quadri-ceps) at 60°/s. Moreover,there was no difference between the FIFA 11+ and control groups in pre-topost-test changes of knee strength at 180°/s. Conclusions Eight-week FIFA 11+ training can effectivelyimprove the hamstring strength of the non-dominant legs of youth amateur football players.
引文
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