Enter any gym, and you’ll see the same core workout: crunches, situps, ab machines, and endless twisting exercises. The logic seems obvious—if you want stronger abs, more visible abs, you train them ...

You'll need better moves to build a functional core. Here’s how you can upgrade your workouts.

Add Yahoo as a preferred source to see more of our stories on Google. "Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." That's why it pays to dedicate ...

Add Yahoo as a preferred source to see more of our stories on Google. Your favorite ab-building machine at the gym may be causing you more harm than good. That's right—we're talking about the torso ...

If you’re after six-pack abs, you’re in the right place. The core workouts below have been hand-picked by top trainers to help you build muscle and forge a rippled midsection with enough definition to ...

Stop wasting time on crunches and start training your core to resist movement for maximum power and injury prevention.