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What is the MAF Test?

An objective measure of aerobic progress and an early-warning test for potential training problems. Among the important benefits of using a heart monitor is the ability to objectively measure your…

The New Aerobic Revolution

Your wish list includes ridding the body of excess fat and losing weight, getting strong with unlimited energy, and improving sports performance while getting healthier—it’s about time. JB came to…

The Myth of the Peak

An excerpt from "The Big Book of Endurance Training and Racing," by Dr. Philip Maffetone Periods of significant levels of fitness in endurance athletes—the highs and lows that frequently occur…

101 MAF Heart Rate Zones

Thirty-five years ago, while developing the MAF 180 Formula, MAF Test and other key endurance approaches, the first training zones included only two: One being aerobic, the other anaerobic. Simple.…
Dr. Phil Maffetone
April 30, 2015