"What
we do at CrossFit is: midline stabilization ... There's a line that
will trisect the spine and bisect the pelvis. Maintaining rigidity of
that line while engaged in functional movement is the essence of midline
stabilization." -CrossFit Founder/CEO Greg Glassman From CrossFit
http://www.youtube.com/watch?v=pA1h7mkWGGs
"Barbara"
Five rounds, each of:
20 Pull Ups
30 Push Ups
40 Sit UPs
50 Squats
Rest precisely three minutes between each round.