Posted on Tuesday, 8th January 2008 by Eric Cressey

Yesterday morning, Tony Gentilcore and I got out to the local track to do some sprinting work.  After we had wrapped up our 45-minute session, as we walked off the track, we noticed a 20-something year-old female runner on the ground banging out crunches in what we estimated were sets of 800.

What caught my eye [...]

Tags: Ab Exercises, Building The Efficient Athlete, Distance Running, Flexibility, Knee Pain, Magnificent Mobility, Mobility, Newsletters, Unstable Surface Training, Weight Lifting Program, Weight Lifting Routine, Workout Program, Workout Routine
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