Spasticity is one of the most common complication of stroke,caused by hyperexcitability of the stretch reflex and characterized by velocity-dependent increase in resistance during passive reflexion or stretch.The poorly understanding of post-stroke spasticity resulting in the poorly treatment approaches.Untill now,there are several relatively clear mechanism of post-stroke spasticity,the excitability of reticulospinal(RST)which will lead to the hyperexcitability of the stretch reflex;the weakened post activation depression at the synapse betwee...