I discovered this breath by accident - but without arm movements. Feeling was great - vibration throughout my body, excitement and I felt nicely lightheaded. But somehow I didn’t go back to it.
This book is bit misleading regarding oxygen. This breathing is not increasing blood oxygen, but just decreasing CO2 mainly in lungs starting cascade of events leading to those funny effects.
I found some info on wiki (http://en.wikipedia.org/wiki/Fainting_game):
“The hyperventilation leads to an excessive elimination of carbon dioxide (CO2) whereas no significant additional amounts of oxygen can be stocked in the body. As only carbon dioxide is responsible for the breathing stimulus, after hyperventilation, breath can be held longer until cerebral hypoxia occurs. The blood also becomes abnormally alkaline as a result of the excessive elimination of carbon dioxide; this subsequent rise in blood pH is termed alkalosis. Alkalosis interferes with normal oxygen utilization by the brain. The symptoms of alkalosis are: neuromuscular irritability, muscular spasms, tingling and numbness of the extremities and around the mouth, and a dizziness, or giddiness, often interpreted as a sense of euphoria.”