Shaolin Chin Na.

In the Chinese language, chin na roughly translates into two words: "chin"-to seize, and "na"-to control. Thus, the major purpose of chin na is to quiet or stop an aggressive action without maiming or injuring to a serious extent. As a result, chin na relies on grasping, pressing and unnaturally twisting the sensitive parts of an opponent's body such as nerves, muscles, and joints.