The Oxygen Advantage: The Simple, Scientifically Proven Breathing Techniques for a Healthier, Slimmer, Faster, and Fitter You

by Patrick McKeown

Maintaining an oxygen saturation of less than 91 percent for approximately 24 seconds can result in an increase of EPO of up to 24 percent, while maintaining this saturation for 136 seconds can result in an increase of EPO of up to 36 percent.