A frequent source of lower-back pain comes from two muscles you might not have heard of—and that makes sense since you rarely see them on those medical posters of human anatomy in doctor's offices.

If you practice yoga, run, hike, ski, cycle, surf, swim, or just want to feel more stable as you go about your everyday life, you need to be aware of an easily overlooked pair of muscles that plays a ...

Most runners are familiar with the big muscles involved in running, like quads, hamstrings, and glutes. But there are lesser-known, yet still important players that can influence run performance. One ...

Trying the QL Claw for back pain — does it really work? In this video, I test the QL Claw tool, explain how it targets the quadratus lumborum muscle, and share my firsthand results and tips for use.