The right leg continuing the down kick through knee extension.
右腿继续通过膝盖伸展下踢。
The right knee kicks down through knee extension. The left knee begins knee flexion.
右膝通过膝盖拉伸向下踢水，左膝开始弯曲膝盖。
Objective Study on how to strengthen knee extension function following patellectomy.
目的探讨髌骨切除后加强伸膝肌力的方法。
The quadriceps muscle brings your knee into full extension.
四头肌肌肉让你的膝进入完全的延长。
For that reason, full extension of the knee and active quadriceps exercises were avoided.
出于这个原因，被避免做充分延长膝关节和股四头肌主动练习。
The knee was passively extended if full active extension was not achieved.
如果病人不能充分积极的伸指膝关节，则被动伸直膝关节。
The knee was passively extended if full active extension was not achieved.
如果病人不能充分积极的伸指膝关节，则被动伸直膝关节。
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