"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." ARE YOU STUCK in a rut when it comes to your training? One of the best ways to fight routine fatigue is ...

We've given you exercise videos with dumbbells and a slew of them with booty bands (hint: you can use these bands for more than just butt exercises!). Now, buckle up for some expert-led videos using a ...

There’s that one corner in the gym, somewhere between the mats and the weights, that doesn’t get nearly the attention it deserves. You know the one I’m talking about—where the medicine balls all just ...

WASHINGTON - At work, Pam O'Donnell types at her computer, talks on the phone and, every so often, bounces a bit on a big blue ball. O'Donnell has an office chair, but this doesn't mean she uses it.