Jailhouse Rock - US Prison-Based Martial Arts System

Jailhouse Rock (JHR) is an American martial arts that was developed in the US prison system. Sub-styles of this system include 52 Hand Blocks, Stato, etc.

This martial arts system is geared towards fighting in tight quarters (i.e. a prison cell). Moreover, it is focused on survival versus tournament sparring. Jailhouse Rock also utilizes techniques that provide a defense against weapons (i.e. prison shivs).