I was taught abdominal breathing in martial arts (taichi) , it engages the diaphragm, while the chest remains still. Are you familiar with the Buteyko breathing method? I played with it as well for a while. It's similar to the Oxygen Advantage method you describe.
this territory is moderated
Yes I'm somewhat familiar since as you mentioned the Oxygen Advantage method has been greatly influenced by the Buteyko method. How was your experience with the Buteyko method?
reply
My experience is only more theoretical than practical. I'll try to get back to it.
reply