inhale through nose exhale through mouth I see some people inhale through mouth and exhale through mouth as well... really all the same as long as you breathe. Exhaling through nose would be really weird...
I have nothing to add to the nose/mouth question, but for heavy compounds, such as bench and squat, it helps to fully inflate your abdomen and hold your breath during the eccentric portion of the lift, and exhale during the contraction.
i inhale through my nose and exhale through my mouth, but something tells me it may better to breathe through my nose only. do you exhale through your mouth or nose?
Your question is flawed. It is not how to breathe but when you breathe.
Ie. when exerting or at resting phase of exercise.
I do find that taking a few extra breaths when doing a tough set can help you to push.
Gasping between reps, or during reps? You shouldn't be gasping while you're lifting the weight.
Not gasping to the extend the frigging bar will collapse on you but a few short breaths during the actual exertion phase can aid me in lifting whether in benching or squats. It sure beats holding your breath while pushing. Try it.