Effect of acute static stretching on force, balance, reaction time, and movement time
Effect of acute static stretching on force, balance, reaction time, and movement time
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DOI：
10.1249/01.mss.0000135788.23012.5f
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发表时间：
2004-08-01
期刊：
影响因子：
--
通讯作者：
Power, K
中科院分区：
文献类型：
--
作者：
Behm, DG;Bambury, A;Power, K
目的：研究急性下肢静态拉伸对平衡、本体感觉、反应和运动时间的影响。方法：16名受试者在静态拉伸股四头肌、腘绳肌和足底屈肌或类似持续时间的控制条件之前和之后进行测试。拉伸方案包括一个5分钟的循环热身，然后是三次拉伸，每次拉伸45秒，每个肌肉群休息15秒。测量包括腿部伸肌的最大自主等距收缩力（MVC），使用计算机控制的摆动板进行静态平衡，下肢的反应和运动时间，以及在有和没有视觉反馈的情况下匹配30%和50% MVC力的能力。结果：拉伸组和控制组的MVC下降和对次极大力的匹配能力无显著差异。然而，与对照组（向上箭头17.3%）相比，拉伸组（向下箭头9.2%）的平衡评分显著（P < 0.009）下降。同样，与拉伸诱导的反应时间（5.8%）和运动时间（5.7%）分别增加4.0%和1.9%相比，对照组的反应时间（5.8%）和运动时间（5.7%）的减少也有显著差异（P < 0.01）。结论：在平衡和反应/运动时间的控制条件下，急性拉伸会破坏热身效果。
Purpose: The purpose of the study was to investigate the effect of an acute bout of lower limb static stretching on balance, proprioception, reaction, and movement time. Methods: Sixteen subjects were tested before and after both a static stretching of the quadriceps, hamstrings, and plantar flexors or a similar duration control condition. The stretching protocol involved a 5-min cycle warm-up followed by three stretches to the point of discomfort of 45 s each with 15-s rest periods for each muscle group. Measurements included maximal voluntary isometric contraction (MVC) force of the leg extensors, static balance using a computerized wobble board, reaction and movement time of the dominant lower limb, and the ability to match 30% and 50% MVC forces with and without visual feedback. Results: There were no significant differences in the decrease in MVC between the stretch and control conditions or in the ability to match submaximal forces. However, there was a significant (P < 0.009) decrease in balance scores with the stretch (down arrow 9.2%) compared with the control (up arrow 17.3%) condition. Similarly, decreases in reaction (5.8%) and movement (5.7%) time with the control condition differed significantly (P < 0.01) from the stretch-induced increases of 4.0% and 1.9%, respectively. Conclusion: In conclusion, it appears that an acute bout of stretching impaired the warm-up effect achieved under control conditions with balance and reaction/movement time.