Back pain caused by muscle strain or aches can be hard to distinguish ... These diagnostic tests show the bony and soft ...

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.

Here’s a quick anatomy refresher to ... which is a part of the posterior (back) aspect of the pelvis and is typically where runners feel pain. The opposing muscle group for the hamstrings ...