Brazilian Jiu Jitsu is a very popular martial art which was invented in Brazil in the early 20th century. Like other martial arts, it also involves various techniques which have developed over the years and are used by its players. Rear Naked choke, Triangle choke, Kimura Armlock, Heel hook are some of the effective techniques used in this sport. - See more at: http://visual.ly/4-popular-brazilian-jiu-jitsu-chokes#sthash.YqeV42l3.dpuf