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The effect of a knee-ankle restraint on ACL injury risk reduction during jump-landing

机译：膝盖纵横抑制对跳转期间ACL损伤风险降低的影响

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Anterior cruciate ligament (ACL) is the most commonly injured ligament. It has a great impact on athletes causing long absence from play and is linked with increased risks of osteoarthritis. Today, literature suggests that the knee braces may not completely reduce ACL injury mechanism risks. Ankle braces, on the other hand, have shown promising results in some of these aspects. Thus, the purpose of this research is to study the effectiveness of a knee-ankle brace restraint in reducing ACL injury risks by increasing knee flexion and reducing knee valgus angles. Eighteen healthy Asian male subjects performed a drop vertical jump maneuver from a 31c m platform. A motion analysis capture was carried out to measure the knee flexion and knee valgus angles. Results show that the effect of a knee-ankle brace restraint was insignificant in increasing knee flexion and in reducing knee valgus angles at initial contact and at peak vertical ground reaction force (VGRF). While the ankle brace showed some trends of increasing knee flexion angles at initial contact, the effect was insignificant. Similarly, the ankle brace did not show significant effects on knee flexion angles at peak VGRF and on knee valgus angles at both instances. The knee brace had little effect on knee flexion angles but showed significant effects on valgus angle increase. In conclusion, a knee-ankle brace restraint was not found to have an effect on reducing ACL injury risks during jump-landing. Ankle brace use did not adversely increase ACL injury risks but has shown weak effects in reducing the risks. The knee brace used in this study was not found to be suitable for reducing valgus angles.
机译：前十字韧带（ACL）是最常见的韧带。它对造成长期缺失的运动员产生了很大的影响，并且与骨关节炎的风险增加有关。今天，文献表明，膝盖胶带可能无法完全降低ACL损伤机制风险。另一方面，脚踝括号已经显示出有希望的结果在这些方面的一些方面。因此，本研究的目的是通过增加膝关节屈曲和减少膝盖旋流角来研究膝关节踝支撑束缚的有效性降低ACL损伤风险。十八份健康的亚洲男性受试者从31C M平台进行了下降垂直跳转操纵。进行运动分析捕获以测量膝关节弯曲和膝关节旋流角。结果表明，膝关节弯曲的效果在增加膝关节屈曲和初始接触处的膝关节旋流角度和峰值垂直接地反作用力（VGRF）中的效果微不足道。虽然踝关节括号显示出初始接触时膝关节屈曲角度的一些趋势，但效果是微不足道的。类似地，踝部支撑对峰值VGRF的膝部屈曲角度并在两个情况下膝关节旋流角上没有显示出显着影响。膝盖括号对膝关节屈曲角度几乎没有影响，但对旋流角度增加显示出显着影响。总之，未发现膝关节踝支撑束缚对降低跳转期间的ACL损伤风险产生效果。踝关节支架使用并未对ACL损伤的风险产生不利影响，但在降低风险方面表现出薄弱的影响。未发现本研究中使用的膝关节括号适用于减少旋流角。

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