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 ...

With each year that passes, I really don't notice any "noticeable" decline in my movement efficiency or strength. I cruise through most weeks with three or four workouts and pretty much keep trucking.

So, what's the most dangerous machine in any gym? It's actually you using the machine incorrectly! Yes, you read that right. There's no inherently evil machine lurking, waiting to injure you. The ...

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 ...

Even after three months at the Port Charlotte YMCA, Cara McCarthy hesitates at the torso-rotation machine. "I'm still figuring this one out," she said. "Adjust it and lean back, I'm thinking." ...