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首页> 外文期刊>Human movement science >Nonlinear approach to study the acute effects of static and dynamic stretching on local dynamic stability in lower extremity joint kinematics and muscular activity during pedalling
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Nonlinear approach to study the acute effects of static and dynamic stretching on local dynamic stability in lower extremity joint kinematics and muscular activity during pedalling

机译：非线性方法研究静态和动态拉伸对近端关节运动学局部动态稳定性的急性效应及踩踏性肌肉活动

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摘要

Researchers have reported contradictory results on the effect of static and dynamic stretching on subsequent performance. Due to the importance of performance through static and dynamic stretching, the aim of this study is to investigate the acute effects of static and dynamic stretching protocols on local dynamic stability in lower extremity joint kinematics and muscular activities during pedalling using a nonlinear dynamics approach. Using a randomised crossover trial design, fifteen active males participated voluntarily in this research (mass: 69.02 +/- 10.52 kg, height: 174.00 +/- 6.74 cm, and age: 21.20 +/- 1.47 years) and completed a pedalling trial in situations of without stretching (WS), after static (SS), and dynamic stretching (DS) of lower extremity. The lower extremity joint angles in the sagittal plane and the electrical activity of soleus, gastrocnemius medialis, tibialis anterior, vastus medialis, biceps femoris, and rectus femoris muscles were collected during 30 pedalling cycles at 70 rates per minute. The results of the repeated measure ANOVA indicated that the knee and ankle angle largest LyE was significantly lower in DS compared to WS and SS. The largest LyE in muscle activity is also significantly lower for all the muscles after DS compared to WS and SS (P <= 0.05). Regarding the positive effects of DS on the joints and the muscle activity local dynamic stability, it is suggested to use DS than SS in the warm-up program before repetitive activities like pedalling.
机译：研究人员报告了矛盾的结果对静态和动态伸展对随后性能的影响。由于性能通过静态和动态伸展的重要性，本研究的目的是研究静态和动态拉伸方案对利用非线性动力学方法踩踏时踩踏下肢关节运动学和肌肉活动的局部动态稳定性的急性作用。使用随机交叉试验设计，十五个活性男性在本研究中自愿参加（Mass：69.02 +/- 10.52千克，身高：174.00 +/- 6.74厘米，年龄：21.20 +/- 1.47岁），并完成了踩踏试验不拉伸（WS），静态（SS）和下肢动态拉伸（DS）的情况。在30个踩踏循环期间在每分钟的70次比率期间收集矢状平面中的下肢接头角度以及肠道，腓肠肌中，胫骨，虫球菌，胫骨前，孢子虫和直肠肌肉肌肉。重复测量Anova的结果表明，与WS和SS相比，膝关节和踝关节角度最大的Lye显着降低DS。与WS和SS相比，DS后所有肌肉的肌肉活动中最大的LYE也显着降低了（P <= 0.05）。关于DS对关节和肌肉活动局部动态稳定性的积极影响，建议在重复节目中使用DS比SS在踩踏板中的重复活动之前。

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