The old adage "lift with your legs, not with your back" is a classic piece of good advice. And really, it is about minimizing the force-generation requirements on the lower back muscles, which are not ...

Sitting all day isn’t just hard on your heart. It can literally shut down your glutes. It's a condition fitness experts now call “dead butt syndrome.” Also known as gluteal amnesia or lower cross ...

If you spend a lot of time sitting — and let's be honest, most of us do — then there's a good chance you suffer from "dead butt syndrome." Also called lower-cross syndrome or gluteal amnesia, this ...

What Is the Psoas Muscle? The psoas (pronounced so-ezz) muscles are two large muscles in your lower back. You have one on either side of your spine. They're the main muscular connection between your ...