Having used the PowerLung I can no breathe fewer times per length. I can now breathe a lot more cleanly in the water. The back-end of my race is now stronger as I can breathe greater volumes in and out. In training, doing sub-aqua work is easier as I can inhale larger amounts of oxygen before going under. Useful for spring events in swimming, I find my breathing in now more explosive.
England Team, World Cup 2001