I'm surprised you're not aware that when warriors are in battle, it is traditional to expell breath as you thrust or swing with your
sword/axe/polearm/whatever.
This isn't to increase the power, it's to moderate your breathing in order to ensure your muscles take in a proper amount of oxygen in order to keep
working - even medieval anatomists knew this, what with the dark arts that they practiced.
It's possible that as you expell oxygen, your lungs deflate and allow for a smoother slash.
I'm not too sure about the supernatural potential of this.
[edit on 4-11-2007 by Throbber]




