Jan. 3, 2006— -- Dave Zinczenko's book, "The Abs Diet," was a hit that inspired videos, magazine articles and a Web site where people shared their success stories. But all workout programs need ...

The ab rollout Pilates exercise can be done without a wheel and still builds strong and stable core and shoulder muscles.

THE TRUE ROUTE to core strength—and to the hard, toned look many guys seek—has always been about more than crunches and hours of cardio. To shed belly fat and build brick-strong abs, you have to train ...

Welcome to Start TODAY. Sign up for our Start TODAY newsletter to join the 31-day challenge and receive daily inspiration sent to your inbox. Can you believe it's almost September? The summer flew by!

For the full workout plan for weeks two and four, visit Kayla Itsines's 4-Week No-Equipment Workout Plan Weeks 2 and 4. 4-Week No-Equipment Workout Plan Weeks 2 and 4: Arms and Abs Complete as many ...