Qin Na (Chinese: 擒拿; pinyin: qínná; Wade–Giles: ch'in na) is the set of joint lock techniques used in the Chinese martial arts to control or lock an opponent's joints or muscles/tendons so they cannot move, thus neutralizing the opponent's fighting ability. Qin Na Shu (Chinese: 術; pinyin: shù meaning "technique") literally translates as lock catch technique. Some schools simply use the word na ("hold") to describe the techniques. Qinna features both standing and ground-based grappling