Check out the article in this week's New York Times Magazine article on the Spanish dude who doesn't just run endurance races, he runs mountains. Its called All Terrain Human. The guy has a max VO2 max of approximately 90. The average male aged 20-29 has a VO2 max of 44 to 51 and the average female aged 20-29 has a VO2 max of 35 to 43. (Lance Armstrong's VO2 max is 85).