Im a bit curious. Back in the day when I played football we would do windsprints and get extremely tired in which our coach would tell us to hold our hands above our heads when we were breathing. They said this would open up our lungs and let more oxygen in. When I tried this it seemed to work(it could have been psychosymatic) I am curious, if this is true, why the UFC or Pride fighters dont use this method when extremely winded during competition.

Any factual input?

Shaolin36