I know that I saw FireTri mention doing Crossfit in the thread about workout routines. Is any one else here regularly doing a Crossfit routine, either at a gym or at home?? Blue Skies, -Robin- http://ironmom.blogspot.com/

“The economy of running is determined on one hand, by how the degrees of movement are restricted, and on the other hand, by how energy is reused…” - Bosch and Klomp from: Running- Biomechanics and Physiology Applied In Practice

In the world of endurance, it seems that you cannot discuss fitness without discussing VO2 max. Ask any endurance athlete about it and you will hear epic stories with names like Indurain, LeMond, and Armstrong. Many of you however, may find yourselves wondering what exactly VO2 max is and why is it so important.

Anybody try these yet? I was also looking at the PX90, anyone try those videos?