When performing these exercises, the waist is at the center, and it leads the movements of the body's nine major joints (shoulders, elbows, wrists, waist, spine, neck, crotch, knees and ankles) in simultaneous rotation.
以「纏絲」來說，有順逆、有裡外、有上下、有進退，出招時以腰為中心，帶動全身 9 大關節（肩肘腕、腰椎頸、胯膝踝）一起轉動，威勢自然驚人。