目标:力量生产在足球中至关重要,它是脑瘫(CP)患者的主要限制。这项研究旨在描述对CP国际足球运动员进行为期25周的常规训练后,短跑力-速度(Fv)曲线的变化。
方法:冲刺Fv概况和其他物理性能变量(即,线性冲刺,垂直跳跃,改变方向,和间歇性耐力)在连续2个训练营中对来自西班牙国家队的14名国际球员进行了评估。在25周干预期之前和之后的1周进行测试前和测试后。干预措施包括每周2次力量训练,添加到通常的足球训练中。
结果:重复测量方差分析显示,运动员的身体表现发生了变化(线性冲刺:F=18.05,P<.01;方向变化:F=16.71,P<.01;耐力:F=31.45,P<.01),并且在冲刺Fv曲线的某些变量中(最大水平力,最大功率,斜坡,最大力比,力比减小;F=14.28-37.81;P<.01),而玩家的最大速度(理论和实际)没有变化(F=0.13和0.01;P=0.72和0.98,分别)。
结论:这项研究表明,每周进行2次力量训练,25周,对提高CP足球运动员的身体表现是有效的。这项研究的主要发现是在加速阶段(冲刺Fv剖面)的力应用的改善,这是许多物理性能测试中的主要属性,也是CP群体的主要限制。
OBJECTIVE: Force production is crucial in football, and it is the main limitation of people with cerebral palsy (CP). This study aimed to describe the changes in sprint force-velocity (Fv) profile after a period of 25 weeks of regular training in international football players with CP.
METHODS: The sprint Fv profile and other physical performance variables (ie, linear sprint, vertical jump, change of direction, and intermittent endurance) of 14 international players from the Spanish national team were assessed during 2 consecutive training camps. Pretesting and posttesting sessions were carried out 1 week before and after the 25-week intervention period. The intervention consisted of 2 strength sessions per week added to the usual football training.
RESULTS: The repeated-measures analysis of variance showed changes in players\' physical performance (linear sprint: F = 18.05, P < .01; change of direction: F = 16.71, P < .01; and endurance: F = 31.45, P < .01) and in some variables of the sprint Fv profile (maximal horizontal force, maximal power, slope, maximal ratio of force, and decrease of ratio of force; F = 14.28-37.81; P < .01), whereas players\' maximal velocity (theoretical and actual) did not change (F = 0.13 and 0.01; P = .72 and .98, respectively).
CONCLUSIONS: This study showed that the implementation of 2 strength-training sessions per week, for 25 weeks, is effective to improve CP football players\' physical performance. The main finding of this study is the improvement of force application in the acceleration phase (sprint Fv profile), which is the main attribute in many physical performance tests and is the main limitation of the CP population.