Are these numbers categorized for the everyday population? Or in fact is 51 actually Elite?
I've a female high school runner (800-1600m) who had a treadmill test completed and the physician scored her at 51 and labeled as Elite.
My experience is Elite as at least 65 and above, although there have been a few world class mid and distance runners with scores < 70.
My two cents is a lactate threshold HR scoring is a much better indicator than vo2.
thoughts?