跨栏运动员的膝关节损伤,除了磕绊栏架等直接外力造成损伤外,多是由于技术不够规范形成的小创伤,起初这些轻度的小创伤,对运动没有什么影响,不会引起重视,但若积累起来形成劳损,就会对运动训练产生不利影响。髌骨劳损——髌骨软骨病,就是这样产生的。髌骨虽然小,作用却很大。它对膝关节起保护和稳定、传递股四头肌力量、增加股四头肌腱的作用力矩及链带作用。 Knee injury of hurdle athletes, in addition to knocking stools and other direct external force damage, mostly due to technical norms formed small trauma, initially these mild minor trauma has no effect on exercise, will not cause any attention, but If accumulated to form a strain, it will adversely affect the exercise training. Patellar strain - patellar cartilage disease, is the result of this. Although the patella is small, the role is great. It protects and stabilizes the knee joint, transfers the strength of the quadriceps, and increases the moment of action of the quadriceps tendon and the action of the chain.