Discover the one hidden muscle that could be causing your hip and back pain, and learn how to ease it with simple stretches.

Tucked deep in your hips and lower back, the psoas muscle won't get you any compliments at the beach—but keeping it strong ...

The iliopsoas (pronounced ILL-ee-o-so-AS) is the combination of the psoas and iliacus muscles (the hip flexors). They are seriously underrated muscles. They don’t get nearly the press that hamstrings, ...

Suppurative psoas abscess is an unusual lesion that is unfamiliar to many orthopaedic specialists, which can make an accurate and timely diagnosis problematic. The symptoms associated with this ...

Fight sarcopenia with 7 bodyweight drills that boost circulation, preserve fast twitch fibers, and build strength after 50.

Weak hip flexors can cause the surrounding muscles to overcompensate, which can cause pain and difficulty walking. Treatment may include physical therapy and exercises. The hip flexors are muscles ...

As he's set to miss yet another major tournament, Rafael Nadal is undergoing an arthroscopic surgery to examine a left psoas muscle injury that has kept him out of action for the last few months, ...

You can use movement to release tension in your body. The hips may store emotional stress, and so certain hip-opening stretches may make a big difference. Perhaps you’ve heard your yoga teacher refer ...