If you have a weight plate lying around at home, you already own one of the most versatile pieces of gym equipment. Weight plates are not just for barbells, but they can be used on their own to build ...

The back extension is a versatile exercise that can be performed virtually anywhere. It can be used as part of a training program to build strength or a rehabilitation program for injury recovery.

But guess what? We've got some good news! There's a movement that's the perfect antidote: the so-called "back extensions." Don't picture a reverse push-up (that would be more like a bridge), but ...