Build your aerobic system with a safe, scientific and sustainable approach
Join millions of users around the world who follow Dr. Phil Maffetone’s MAF Method to build their maximum aerobic function – a personalized health and fitness methodology that is safe, scientific and sustainable for walkers, runners, cyclists & elite athletes.
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Burn fat for fuel

Dr. Phil Maffetone
Coach / Author / Innovator
Millions of people, from professional athletes in virtually every sport, to people of all athletic abilities have used the MAF Method of Dr. Phil Maffetone to build their fat-burning system.
I was constantly injured and really struggling. This all changed when I met Phil and started training at my MAF Heart Rate. My niggles cleared up and on race day, I destroyed the field!
Mark Allen6 Times World Ironman Champion
Dr. Maffetone is among the most innovative thinkers in the field of exercise science. His training program differs from so many others, with its focus not just on the next race, but on a lifetime of healthy living and exercising.
Tracy Beth Høeg, M.D., PhDPhysician Scientist
Safe. Scientific. Sustainable.
The MAF philosophy empowers individuals with the tools and the guidance to develop and strengthen the aerobic system – the body’s fat-burning engine responsible for supplying stable, long-term energy, leading to reduced body fat, improved physical and mental energy, and resilience to stress and disease.
Knowledge base
Over 200 articles, recipes, podcasts and research papers on health, nutrition and lifestyle




