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膝关节超伸是指腿伸直时膝盖的伸展角度超出了正常的屈伸范围(超过180度),胫骨的顶端相对于股骨向后滑动,使得膝关节向后过度打开,膝关节形成了一个C字形。膝关节超伸时大腿的重心发生变化,四头肌处于紧张无力的状态,小腿向后顶,长期膝关节超伸容易导致膝关节受损,因为大腿和小腿处于紧张状态,所以腿更容易变粗。膝关节超伸还会出现
Knee hyperextension refers to the extension of the knee when the leg extension angle beyond the normal range of flexion and extension (more than 180 degrees), the tip of the tibia relative to the femoral sliding backwards, so that the knee joint over the back open, the knee joint formed a C Font Knee joint hyperextension when the thigh center of gravity, quadriceps in a state of tension, back to the top of the knee, long-term knee hyperextension easily lead to knee damage, because the thigh and calf in tension, so the legs more easily variable Crude. Extensions of the knee will appear