They do not train
http://www.outsideonline.com/blog/outdoor-adventure/12-year-old-trail-running-phenom-wins-xterra-21k.html
My salty dogs
They do not train http://www.outsideonline.com/blog/outdoor-adventure/12-year-old-trail-running-phenom-wins-xterra-21k.html
Notice that she credits having read the ChiRunning book. With only a few adjustments and some focus the form is much like a kid would run anyways. It's old farts that have no will power to adjust and keep on doing what they are doing -- run, repeat, get an injury, run repeat, get injured.......
Off soap box now but ..... cool story.