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Acute static stretching with different volumes improves hamstring flexibility but not reactive strength index and leg stiffness in well-trained judo athletes
Journal of Human Sport and Exercise ( IF 0.5 ) Pub Date : 2020-01-01 , DOI: 10.14198/jhse.2021.164.03
İmren Kurtdere , Cem Kurt , İlbilge Özsu Nebioğlu

Purpose: The aim of this study was to compare the effects of different volumes of static stretching exercises (SS) on the reactive strength index (RSI), leg stiffness (K leg ), and hamstring flexibility in well-trained judo athletes. Method: In total, 17 international level judo athletes (11 women and 6 men; age, 20.47 ± 1.59 years; experience in judo, 11.35 ± 1.84 years) were recruited for this study. The athletes completed three different SS sessions named low (LV–SS: 3.5 min), moderate (MV–SS: 7 min), and high volumes (HV–SS: 10.5 min), 72 h apart, in a randomized crossover study. Before and after each SS exercise session, hamstring flexibility, RSI and K leg were evaluated by a sit-and-reach test and a Myotest accelerometric system, respectively. Results: Different volumes of SS exercises improved hamstring flexibility (p .05). Different volumes of SS exercises neither improved nor reduced RSI and K leg (p > .05). Conclusion: Judo athletes can use LV–SS, MV–SS, or HV-SS for hamstring flexibility enhancement, and SS exercises can be used as a part of a warm-up session prior to judo training or competition.

中文翻译:

在训练有素的柔道运动员中,不同体积的急性静态拉伸可以改善腘绳肌的柔韧性,但不能改善反应性力量指数和腿部僵硬

目的:本研究的目的是比较不同容量的静态拉伸运动 (SS) 对训练有素的柔道运动员的反应强度指数 (RSI)、腿部刚度 (K 腿) 和腘绳肌柔韧性的影响。方法:共招募17名国际级柔道运动员(女11名,男6名;年龄20.47±1.59岁;柔道经验11.35±1.84岁)参加本研究。在一项随机交叉研究中,运动员完成了三个不同的 SS 训练,分别称为低(LV-SS:3.5 分钟)、中等(MV-SS:7 分钟)和高容量(HV-SS:10.5 分钟),间隔 72 小时。在每次 SS 运动之前和之后,分别通过坐姿和伸展测试和 Myotest 加速度测量系统评估腘绳肌柔韧性、RSI 和 K 腿。结果:不同量的 SS 练习提高了腘绳肌的柔韧性 (p .05)。不同量的 SS 练习既没有改善也没有减少 RSI 和 K 腿(p > .05)。结论:柔道运动员可以使用 LV-SS、MV-SS 或 HV-SS 来增强腘绳肌的柔韧性,并且 SS 练习可以作为柔道训练或比赛前热身课程的一部分。
更新日期:2020-01-01
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