The influence of trunk control to the mechanism of anterior cruciate ligament injury

我们进行这项研究是为了阐明干控制对前韧带损伤机制的影响。首先，我们研究了在切割动作中膝关节、髋关节和躯干动力学和运动学之间的关系。其次，研究了刈割过程中树干加速度的性别差异。第三，研究了树干强度对树干切削过程中加速度的影响。结果表明，躯干前倾的指令引起了女性膝关节内收扭矩。切割时主干加速具有良好的可靠性。切割过程中躯干垂直加速度的性别差异显著，且与躯干和下肢姿势的关系显著。此外，较差的躯干屈曲强度与较大的后躯干加速度有关。上述结果提示，前韧带损伤不仅与膝关节有关，还与躯干和髋部有关，躯干和髋部的训练对预防前韧带损伤具有重要意义。

We conducted this study to clarify the influence of trunk control to the mechanisms of anterior ligament injury. Firstly, we examined the relationships between the knee, hip and trunk kinetics and kinematics during the cutting maneuver. Secondly, we examined the gender differences of trunk acceleration during cutting. Thirdly, we examined the influence of trunk strength to the trunk acceleration during cutting. As a result, the instruction of trunk forward inclination induced knee adduction torque of the females. Trunk acceleration during cutting had good reliability. There were significantly gender difference in vertical trunk acceleration and relationships with trunk and lower limb posture during cutting. Additionally, poor trunk flexion strength was related with greater posterior trunk acceleration. These results suggested that not only knee but trunk and hip are related to anterior ligament injury, and the training of trunk and hip is important to prevent anterior ligament injury.