2-Week Crunch Challenge

If you're a fan of ab exercises, you'll love this challenge that gets you all the way to 100 crunches in just two weeks. It involves five types of crunches to work different areas of your core so once you learn how to do them, you can start crunching your way through this 14-day plan. You can also download and print the PDF version of the challenge to hang on your fridge, the wall of your home gym, or in your work cubicle office.
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