躯干运动控制对非接触性膝前交叉韧带损伤机制的影响

项目名称： 躯干运动控制对非接触性膝前交叉韧带损伤机制的影响

项目编号： No.81472143

项目类型： 面上项目

立项/批准年度： 2015

项目学科： 医药、卫生

项目作者： 谢地

作者单位： 泰山医学院

项目金额： 72万元

中文摘要： 膝外翻和躯干后倾是非接触性膝前交叉韧带损伤时的典型特征。躯干前倾的增加可能会降低非接触性膝前交叉韧带损伤的危险。躯干侧屈的增加则会增加非接触性膝前交叉韧带损伤的危险，我们认为有必要明确方向转换动作中躯干运动和前交叉韧带损伤危险因子之间的关系。最新研究发现侧切动作中躯干运动和膝关节在横切面所承受的负担具有相关性，但关于哪种特定的姿势或控制策略能较好的限制冠状面和横切面膝关节的负担的报道很少。我们在研究中已经证实女性运动员在侧切动作的停止期有较高的前交叉韧带损伤的危险。基于此我们提出侧切动作的停止期，大的躯干前倾角、小的躯干侧屈角将减少膝关节外翻力矩并使大腿后部肌群对大腿四头肌肌电活动量的比值降低的假说。因此，本课题拟证实上述假说，并系统分析躯干运动与骨盆、髋关节、膝关节运动﹑膝关节所受外力以及膝关节周围肌肉肌电活动的关系，阐明膝前交叉韧带损伤的机制，并结合研究的成果提出预防膝前交叉

中文关键词： 非接触；前交叉韧带；损伤；机制；躯干

英文摘要： Knee valgus and trunk back inclination are the typical characters of non-contact anterior cruciate ligament (ACL). Trunk front inclination may decrease the risk of non-contact ACL injury. However, trunk lateral inclination can increase the risk of non-contact ACL injury. We think that it is necessary to clear the association between trunk and risk factors of ACL injury during cutting maneuvers. The latest study showed the relationship between trunk motion and knee loading at traverses planes during cutting maneuvers. However, only few studies reported what specific postures and control strategies optimally limit frontal and transverse-planes knee loading. We have assured that female basketball athletes have a higher risk of ACL injury during the stop phase of sidestep cutting. For this， we hypothesized that bigger trunk front inclination angle and smaller trunk lateral inclination angle will decrease knee valgus torque and the ratio of hamstring to quadriceps muscle activation during the stop phase of sidestep cutting . Therefore，we plan to approve above-mentioned hypothesization and analysis systemly the relationship between trunk movement and pelvis，hip，knee movement, knee moment and muscle activiy around knee. Clarifing the mechanism of ACL injury and proposing new methods of anterior cruciate ligament injury prevention combination to the results of this study.The result of this item may provide theory foundation for the prevention of ACL injury.

英文关键词： non-contact;anterior cruciate ligament;injury;mechanism;trunk