working out with a mouth piece?

[mex602]

whats your guys take on doing cardio with a mouth piece. Ive seen some people do it. Does it help your breathing??

[legattacks]

It does help you learn how to breath with a mouth piece. So if you use a mouth piece in competition I would practice with it.

[HtotheZ]

You want your training to be as close to the real thing (or more demanding) as possible. Working out with a mouthpiece is a good idea. I'd be doing that if i was competing

[KidDinamita]

As both legattacks and HtotheZ told you, you will learn how to control your breathing while working out with a mouthguard / mouthpiece. Important that you do not start a bad habit to leave your mouth open when you punch, because you will end up without mouthguard or with a swollen jaw.

keep punching