Jailhouse Rock

Jailhouse Rock (JHR) is one of only two martial arts that are indigenous to the United States. Created within the cutthroat world of (you guessed it) America s prison system, JHR is a prime example of no frills brawling developed by men who literally have nothing better to do than work out and fight.JHR s is notable for its brutal training methods, one of which is known as 52 pick up. A deck of cards are scattered about the floor and trainees are made to pick them all up in order while being beaten mercilessly by three or more others.