Body-movement in Pushing Hands

"Pushing Hands", or "Tui Sou", is an ingenious way to develop combat skills. There are two categories of "Pushing Hands", stationary and mobile. In "Stationary Pushing Hands" the attack is of short or medium range. The responder needs not move away but uses his hands or body-movement respectively to deflect the attack. If the attack is of long range, the responder needs to move away with his feet resulting in "Mobile Pushing Hands".