"Startling facts
Throughout the book, the reader learns startling facts, such as: Armstrong's heart is one-third larger than most males', and that his body is able to process lactic acid (the stuff that makes muscles burn) far more efficiently than other cyclists. Lance's engine, Doyle says, can produce more power with less pain, making him "the alpha, the meanest, the toughest"
Heres the page
http://www.active.com/story.cfm?stor...df2005_peloton
another interesting one i found
MAN OR MACHINE?
FITNESS LANCE AVERAGE MALE
[VO.sub.2] max 84 [O.sub.2]/kg/hour 40 [O.sub.2]/kg/hour
Resting heart 32-24 72
rate beats/min beats/min
Stroke volume 200 ml 100 ml
(amount of
blood sent to
body with
each
heartbeat)
http://www.findarticles.com/p/articl...58/ai_79665437