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.

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 ...

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 ...

Chronic low back pain (cLBP) is a multifactorial condition, including paraspinal muscle asymmetry. Understanding the relationship between muscle asymmetry and cLBP and how this varies by sex is ...

When you ride, the QL plays more of a stabilizing role, working to control your pelvis and trunk, explains physical therapist Spencer Agnew, P.T., D.P.T., founder of Peak Endurance Performance and ...