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Let me give you a sport that probably do not know, called Tricking ... This is the sport of ninjas, well this is my definition but according to Wikipedia is:
Tricking is a sport that mixes acrobatics with martial arts. Emerged in the 1990s in the United States, and can not be considered a struggle because there is no fighting, no physical involvement in the implementation of the movements. Different from parkour, tricking the obstacles does not require to be practiced. Characterized more by their sequences combined with acrobatic spins kicks and other martial arts moves ...
I did not know the sport but now I am big fan .. You knew this sport?
Source link: http://www.rewtec.com/t5937-desporto-tricking