that you scale it back based on your abilities. So you may put less weight on the bar for the "thrusters", or you will do jumping pull ups (where you jump off a box and pull yourself up) instead of Kipping pull ups (the type shown in the video).

Crossfit trainers are super picky about technique so injuries are very very rare. In fact, these exercises would actually strengthen your back and prevent future injuries. If old ladies can do crossfit, so can you. Check out this article.

• http://www.crossfit.com/journal/library/26_04_CrossFit_Grandma.pdf

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Season Prediction (10/22/08): 38 wins, 13th pick