4 Weeks to Flat Abs


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Getting started

A toned tummy doesn’t come from crunches alone. You need to work all of your ab muscles (not just the big central one) to get a truly tight middle.

That’s why this workout—based on the popular Abs Only class from Laurie Alstrom, group-exercise manager at The Sports Club/LA in Washington, D.C.—is so effective. Give it 10 minutes a day for 3 days a week, add in some cardio, and you’ll lose 2 ab inches in 4 weeks.

Next: Supported side plank

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