BJJ promotes the concept that a smaller, weaker person can successfully defend themselves or another against a bigger, stronger, heavier assailant by using proper technique, leverage, and most notably, taking the fight to the ground, and then applying joint locks and chokeholds to defeat the opponent.
The objective is to either throw or takedown an opponent to the ground, immobilize or otherwise subdue an opponent with a pin, or force an opponent to submit with a joint lock or a choke.
Hélio Gracie was a Brazilian martial artist who, together with his brother Carlos Gracie, founded the martial art of Gracie jiu-jitsu, also known as Brazilian Jiu-Jitsu. Due to his frail physique, most of the techniques he had learned from watching Carlos teach were particularly difficult for him to execute. Eager to make the techniques work for him, he began modifying them to accommodate his weak body. Emphasizing the use of leverage and timing over strength and speed, Helio modified virtually all of the techniques and, through trial and error, created Gracie Brazilian Jiu-Jitsu