Hand-to-hand combat

Hand-to-hand combat, or close quarters combat, refers to various forms of martial arts based upon physical contact between two opponents, usually both trying to harm or subdue the other.

In 2258 of the alternate reality, asked for any officer trained in advanced hand-to-hand combat to dive to the surface of Vulcan in an attempt to stop Narada from drilling into the planet's surface. volunteered, and and Engineer Olson accompanied him. 

In 2372, after fighting several Klingons in a corridor on Deep Space 9, Elim Garak commented "I find all this hand-to-hand combat to be really quite distasteful".