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首页> 外文期刊>Research quarterly for exercise and sport >Effect of a periodized power training program on the functional performances and contractile properties of the quadriceps in sprinters
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Effect of a periodized power training program on the functional performances and contractile properties of the quadriceps in sprinters

机译：定期力量训练计划对短跑运动员股四头肌功能性能和收缩特性的影响

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Our purpose was to compare the effect of a periodized preparation consisting of power endurance training and high-intensity power training on the contractile properties of the quadriceps muscle and functional performances in well trained male sprinters (n = 7). After 4 weeks of high-intensity power training, 60-m sprint running time improved by an average of 1.83% (SD = 0.96; p < .05). This improvement was inversely related to an increase in maximal voluntary contraction torque (r = -.89, p < .05) and poorly correlated with changes in the contractile kinetics of the quadriceps muscle (r range from .36 to -.46). These findings suggest that sprint performance is poorly predicted by muscle intrinsic properties and that a neural adaptation appears to explain most of the observed functional adaptations.
机译：我们的目的是比较由训练有素的男子短跑运动员（n = 7）的耐力训练和高强度力量训练组成的定期准备对股四头肌的收缩特性和功能表现的影响。经过4周的高强度力量训练后，60米短跑的跑步时间平均提高了1.83％（SD = 0.96; p <.05）。这种改善与最大自愿收缩扭矩的增加呈负相关（r = -.89，p <.05），而与股四头肌收缩动力学变化的相关性很弱（r范围从0.36到-.46）。这些发现表明，冲刺的表现很难通过肌肉的内在特性来预测，而神经适应似乎可以解释大多数观察到的功能适应。

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