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首页> 外文期刊>Clinical journal of sport medicine: official journal of the Canadian Academy of Sport Medicine >Gains in flexibility related to measures of muscular performance: impact of flexibility on muscular performance.
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Gains in flexibility related to measures of muscular performance: impact of flexibility on muscular performance.

机译：与肌肉表现指标有关的柔韧性获得：柔韧性对肌肉表现的影响。

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OBJECTIVE: Studies that investigated possible correlations between flexibility and muscular performance are scarce in the literature. Therefore, the purpose of this study was to investigate the impact of a program of static stretching on the flexibility of the hamstrings and on muscular performance of the knee flexors and extensors. DESIGN: Pre-post experimental design. SETTING: University laboratory. PARTICIPANTS: Thirty subjects aged 22.8 +/- 4.9 years with bilaterally shortened hamstrings. INTERVENTION: Using a protocol that has been previously described, the intervention consisted of 30 sessions of static stretching, performed bilaterally five times a week for 6 weeks. MAIN OUTCOME MEASUREMENTS: Measures of knee range of motion and isokinetic muscular performance (peak torque, angle of peak torque, and work) of knee flexors and extensors at speeds of 60 and 300 degrees/s. RESULTS: After intervention, significant gains in measures of flexibility (P < 0.0001) were observed, with an average gain of the knee-extension angle of 12.6 degrees, ranging from -1.2 to 30.7 degrees. In addition, we found significant increases in the following parameters of muscular performance: angle of peak torque of hamstrings at 60 and 300 degrees/s (P < 0.0001 and 0.018) and for work at 60 and 300 degrees/s for knee flexors (P = 0.012 and 0.005) and for knee extensors (P < 0.0001). CONCLUSIONS: The intervention resulted in gains in measures of flexibility, and these gains had a positive impact on some parameters of muscular performance.
机译：目的：研究柔韧性和肌肉性能之间可能相关性的研究文献很少。因此，本研究的目的是研究静态拉伸程序对绳肌的柔韧性以及膝屈肌和伸肌肌肉性能的影响。设计：后期实验设计。地点：大学实验室。参与者：30名年龄在22.8 +/- 4.9岁的受试者，双侧腿筋缩短。干预：采用先前描述的方案，干预包括30次静态拉伸，每周进行两次，每次5次，共6周。主要观察指标：以60度和300度/ s的速度测量膝盖屈伸肌的膝关节运动范围和等速运动肌肉性能（峰值扭矩，峰值扭矩角度和功）。结果：干预后，观察到柔韧性测量值的显着提高（P <0.0001），膝部伸展角的平均增益为12.6度，范围为-1.2至30.7度。此外，我们发现以下肌肉性能参数显着增加：60绳肌的最大扭力角在60和300度/ s（P <0.0001和0.018）以及在60和300度/ s的膝屈肌工作（P = 0.012和0.005），对于膝关节伸肌（P <0.0001）。结论：干预导致了灵活性指标的增加，这些收益对某些肌肉性能参数产生了积极影响。

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