In this study, we compare the effects of vibration on the knee and ankle torques after performing leg-press exercises for four weeks. A total of 20 participants were randomly assigned to a group for leg-press with vibration (VLP group; nine males, one female, 25.8 years old, 172.3[Formula: see text]cm, and 73.8[Formula: see text]kg) and another group for regular leg-press (LP group; eight males, two females, 25.6 years old, 169.6[Formula: see text]cm, and 65[Formula: see text]kg), wherein they performed exercises for four weeks (four times a week). The frequency and amplitude of vibration applied during the exercise were 30[Formula: see text]Hz and 1.5[Formula: see text]mm, respectively. To examine the effects of the exercise, the isometric and isokinetic joint torques of the knee and ankle were measured using Biodex (Biodex Medical Systems, USA) for a total of three times, namely: before exercising and after two and four weeks. The results showed that the isometric and isokinetic joint torques of the knee and ankle improved overall for both groups after four weeks. However, the effects of the leg-press with vibration were not observed. Therefore, further studies are required to investigate the method of applying vibration to each muscle and the frequency and amplitude of vibration, as well as the effects of vibration on the elderly and patients under rehabilitation.

中文翻译：

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附有振动器的腿部推举对膝关节和踝关节扭矩影响的基础研究

在这项研究中，我们比较了在进行四个星期的腿部推举运动后振动对膝盖和脚踝扭矩的影响。共有20名参与者被随机分配到振动压腿组（VLP组；9男1女，25.8岁，172.3[公式：见文]cm，73.8[公式：见文]kg）另一组常规压腿（LP组，男8名，女2名，25.6岁，169.6[公式：见文]cm，65[公式：见文]kg），锻炼时间为4周（一周四次）。锻炼期间施加的振动频率和振幅分别为 30[公式：见正文]Hz 和 1.5[公式：见正文]mm。为了检查运动的效果，使用 Biodex（Biodex Medical Systems，USA) 共 3 次，即：运动前和运动后两周、四周。结果表明，4 周后，两组的膝和踝关节等长和等速关节扭矩总体上有所改善。然而，没有观察到带有振动的腿部推举的效果。因此，需要进一步研究对每块肌肉施加振动的方法、振动的频率和幅度，以及振动对老年人和康复患者的影响。