7 Weeks to 300 Sit-Ups
Strengthen and Sculpt Your Abs, Back, Core and Obliques by Training to Do 300 Consecutive Sit-Ups
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Following the success of the first two 7 Weeks books this book takes the same proven popular approach to sit-ups. It's simple, daily schedule for 7 weeks allows readers to build the strength needed to do 200 consecutive sit-ups and build visible ab muscles and tight, impressive core strength.
