Never underestimate the power of exhaling. Learning to breathe correctly while you’re training is essential. Because carbon dioxide in the system is what causes the muscles to fatigue. You get rid of carbon dioxide by exhaling. So the more carbon dioxide you’re able to exhale out of your system, the longer it will take for the muscles to fatigue. Yes, they’ll fatigue sooner or later if you keep exercising—no question. But it will take longer and longer to fatigue the more carbon dioxide you get out of your system.
So technically, it’s more important to exhale than it is to inhale . . . but we have to do both. 🙂