The right knee pain upon sudden standing up from sitting position is due to the instability of the knee joint most likely resulted from weaken muscle power around the knee.
The right knee pain upon sudden standing up from sitting position is due to the instability of the knee joint most likely resulted from weaken muscle power around the knee.
坐下后突然站起来导致右腿膝盖痛，是因为膝盖的周围肌力变弱而引起膝关节不稳定所致的。