Yahoo

Forget sit-ups — this standing ab exercise targets your obliques and boosts your balance

We've said it before and we'll say it again — when it comes to building a rock-solid core, endless sit-ups and planks alone won't do it. Not only does switching things up help you beat boredom, but it ...
Yahoo

Forget crunches and sit-ups — I use this slow, controlled Pilates exercise to sculpt my obliques and build deep core strength

Add Yahoo as a preferred source to see more of our stories on Google. I've been practicing Pilates for the past 15 years — it's helped me get to the start line of six marathons without injury, as well ...