i think i may be growing me some new mitochondria
Smokin’ run today. Adaptation is definitely taking place. Today, I was able to very comfortably run near/at the top of my “hard” day training range and it showed.
A pic of this week’s training log can be seen here.

Monday December 18, 2006 @
Good going, Mark. You must be so happy to be “back.” I am following your progress! CRN is looking great, by the way. I know it takes a lot of work….thanks for all you do!