Up the ante on your ab work.

Crunches have long been the go-to exercise for a post-workout ab finisher. Not only are they simple to execute, but you can't deny the burn that comes after just a few reps. Still, as fatigue sets in, ...

Add Yahoo as a preferred source to see more of our stories on Google. The term "core" often refers to a variety of muscles around the center of your body: 'TVA' (transverse abdominis), rectus ...

While exercises like crunches and sit-ups target the outer six-pack muscles, with butterfly kicks, you’re working the deepest ...

There’s no tap dancing around getting in shape. You have to sweat. Body weight exercises, such as toe taps, performed at a quick pace can dramatically improve your overall strength and your ...

Looking for that slow burn? We've found her.

Add Yahoo as a preferred source to see more of our stories on Google. "Unlike fast-paced crunch variations, toe taps train the core to stabilize while the legs move independently," says Nicole ...

Pilates has become the go-to workout for building functional strength and flexibility while being gentle on your joints. In particular, "Core engagement and strengthening are fundamental parts of any ...