3/13/2013

Why not get in some crunches. Try to get in 3 sets of 15 reps of crunches (3 sets of 50 reps for advance) throughout your day.

Here is a video from YouTube to help you out.
http://www.youtube.com/watch?v=Xyd_fa5zoEU

Post once to accept the challenge, and again when you have completed them.