Medicine balls are small, weighted exercise equipment great for strengthening your abs and core. Though you can use just one weight, using multiple sizes can make the workouts more versatile. It's ...

I once did an entire ab workout using an exercise ball, so trust me when I say that this piece of equipment makes core workouts about six times harder than they look. You think it's all fun and games ...

A medicine ball is a great way to get you firing up your core. If you haven’t heard of a medicine ball, it’s just a weighted ball that is perfect for strength training—like core exercises. So having a ...

Carve out just nine minutes a day, five to six times a week, and watch how your core transforms.

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Please see responses from Life Time Plymouth (Minnesota) Personal Trainer Keri Anderson Thanks a bunch! 1 ...