If the student has any inner knee trauma or issues, she should bring the legs closer together or tighten the top of the legs (the quadriceps) to engage the kneecaps.

• 如果学员有任何膝盖内侧损伤或问题； 她应该让双腿靠的近一些或收紧腿前侧（四头肌）来保护膝盖.