Originally Posted by Silverstone

It's unnecessary to do anything more than a short grunt. If anything it'll just drain your body of energy faster. If you constantly expel all your breath just to make your screams, you're depleting your body of much needed oxygen. Purely hollywood effect.. I'm in the process of learning Muay Thai, and each time I strike, I make a weird hiss noise, and that's it. No weird noises.


As for the Jackie Chan and Jet Li debate. ..

Are you guys familiar with Jackie Chan's martial arts record? He's not only very skilled at one type... He's skilled at many.: hapkido, tae kwondo, judo, shaolin and wing chun kung fu.

Jet Li is very skilled in Wushu, which is the Chinese national sport and a discipline of martial arts known for it's performance style, rather than a mode of fighting.