Quiz: Which Move Will (Really) Flatten Your Abs?

Who wouldn't love to tighten and tone their tummy? But it's not always obvious which moves will really do the trick. So we asked a pro–Jessica Matthews, MS, an exercise physiologist with the American Council on Exercise–for her expert opinion.

planks-or-crunches.jpg planks-or-crunches.jpg activates more muscles,” says Matthews, “and it’s gentler on the spine.”

About fox news

Check Also

These Orthotic Insoles Allowed Me to Run Pain-Free for the First Time in Years

Most runners have been there: You've just started out or are well on your way …

Leave a Reply