“No breath taken during the set will involve the complete exchange of the full tidal volume of your lungs. This takes too long, requires too much relaxation, and is unnecessary. Breathing during the set consists only of topping off the huge breath taken before the first rep, after a quick exhalation that might consist of only 10% of tidal volume. This short refresher of air is just enough to allow the set to be finished more comfortably. The fact that it amounts to so little air is the reason you might decide to forego it in favor of maintaining tightness, after you practice it.”
'No breath taken during the set will involve the complete exchange of the full tidal volume of your lungs.This takes too long, requires too much relaxation, and is unnecessary.'
-okay, fine i got it.But i don't understand what he says further. Please someone explain me.