Chin Na (Qin Na) is one of the four major fighting categories in all Chinese martial styles. The four categories are: kicking (Ti), Striking (Da), Wrestling (Shuai), and Seize-Controlling (Na).
Joint lock Chin Na techniques can be effectively used against an opponents grabbing attacks as well as against wrestling. Pressing and striking Chin Na can be used to seal the opponentճ breathing, vein/artery, or Qi circulation, which can cause severe pain, numbness, unconsciousness, or even death.
Most of Chin Na can be learned easily and be adopted into any martial style. Chin Na has been known as the root of the Japanese arts of Jujitsu and Aikido, and practitioners can use the study of Chin Na to increase their understanding of the theory and principles of their own arts.