What it stands for: volume of oxygen (O2) maximum
Curious to know how your fitness level stacks up against someone like Lance Armstrong? Or maybe just your neighbor in spin class? While you can't quantify overall fitness, VO2 max is the number that remains supreme among endurance athletes. Known as the “Darth Vader test,” you find your VO2 max by sprinting on a treadmill with an air-tight face mask that measures the maximum amount of oxygen you can utilize during full-out exercise. For a woman in her 20s or 30s, the average VO2 max is between 30 to 35 percent—anything over 40 is considered excellent. Still curious about Lance? His is 85. Yeah…
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