Brazilian Jiu-Jitsu - (BJJ) is a martial art, combat sport, and a self defense system that focuses on grappling and especially ground fighting. The art was derived from the Japanese martial art of Kodokan judo (which itself is derived from Japanese Jujutsu) in the early 20th century. It teaches that a smaller, weaker person can successfully defend against a bigger, stronger assailant by using leverage and proper technique – most notably by applying joint-locks and chokeholds to defeat the other person. BJJ training can be used for sport grappling tournaments (gi and no-gi) and mixed martial arts (MMA) competition or self defense. Sparring (commonly referred to as "rolling") and live drilling play a major role in training, and a premium is placed on performance, especially in competition, in relation to progress and ascension through its ranking system.

Brazilian Jiu-jitsu is known as more than just a system of fighting. Since its inception in 1882, its parent art of judo was separated from older systems of Japanese jujutsu by an important difference that was passed on to BJJ: it is not solely a martial art: it is also a sport; a method for promoting physical fitness and building character in young people; and, ultimately, a way (Do) of life.

BJJ is most strongly differentiated by its greater emphasis on groundwork than other martial arts. Commonly, striking-based styles spend almost no time on groundwork. Even other grappling martial arts tend to spend much more time on the standing phase. It is helpful to contrast its rules with judo's greater emphasis on throws, due to both its radically different point-scoring system, and the absence of most of the judo rules that cause the competitors to have to recommence in a standing position. This has led to greater time dedicated to training on the ground, resulting in enhancement and new research of groundwork techniques by BJJ practitioners.

Along with BJJ's great strengths on the ground comes its relative underemphasis of standing techniques, such as striking. To remedy this comparative lack, there is an increasing amount of cross-training between the sports of BJJ and wrestling, Judo, or Sambo, as well as striking based arts such as Muay Thai, kickboxing, and boxing.

Sport Brazilian Jiu-Jitsu's focus on submissions without the use of strikes while training allows practitioners to practice at full speed and with full power, resembling the effort used in a real competition. Training methods include technique drills in which techniques are practiced against a non-resisting partner; isolation sparring, commonly referred to as positional drilling, where only a certain technique or sets of techniques are used, and full sparring in which each opponent tries to submit their opponent using any legal technique. Physical conditioning is also an important part of training at many clubs.

 Here are a couple of YouTube video showing both extreme BJJ and practical BJJ

 

Please refer to our references as we have used a few different sources for the basic explanation of each martial art discipline. Many of our direct links, images and text will be from the site Wikipedia which is not known for the most accurate information when it comes to doing a thesis or studying for ones P.H.D. but does have a large collection of data that is well organized. Much of the text regarding martial arts styles on Wikipedia seems to generally sum up each discipline as good as many other sources. We do not intend to re-invent the wheel, but we do want to roll you in a good direction in order to get a glimpse of each style.

References:	http://www.usgyms.net
	http://en.wikipedia.org
	http://www.thelawofthefist.com