The four main muscles of the deep core—transverse abdominis, multifidus, pelvic floor and the diaphragm—work together to keep ...

Most people know where the abs are in the body—sometimes known as the six-pack muscles—but few are so familiar with the deep core. These are the deepest layer of abdominal muscles and are sometimes ...

You’ve probably seen it all over your feeds: Fitness pros and physical therapists talking about “training the deep core.” But unlike crunches or Russian twists, these exercises don’t come with a pump ...

The structures at the bottom of this image that look like scales are actually bundles of muscles just under the skin of a rabbit. This image is a stained cross section taken under polarized light ...

With my colleague Joy, we were invited to give a lecture to undergraduate kinesiology students who were visiting our campus from other Canadian universities. As many of the students also practice as ...

Tight hip flexors, especially a deep muscle called the psoas, can silently stress your spine. Here's why this muscle deserves more attention—and how to strengthen it. Lower back pain is often blamed ...

If you have yet to experience back pain, the odds are sadly stacked against you. According to World Health Organization data, most people will experience low back pain at some point in their lives.