When this muscle weakens or becomes dysfunctional, it sets off a cascade of compensations throughout the body that can manifest as persistent back pain resistant to conventional treatments.

Your deep core refers to a group of muscles that stabilize your spine, pelvis, and internal organs, protecting your lower back from injuries as you move. Common ab exercises like crunches and sit-ups ...

Find out what you need to know about your body's core, including the muscles it contains, what it does, and how to strengthen it.

What is the difference between abs and core muscles? A personal trainer explains everything you need to know about your core.

Multifidus (Image credit: Getty) One of the smallest sets of muscles within your core, the multifidus muscles are attached either side of your spinal column.

The upper back is an important enough area to train that many gym rats devote two whole days to it each week—this is what “pull day” really means. With strong lats and other upper back ...

Objectives —To determine the effect of different training schedules on the cross sectional area (CSA) of the lumbar multifidus muscle in patients with chronic low back pain. Methods —Each of 59 nine ...

About ReActiv8® ReActiv8 is an implantable medical device designed to treat adults with intractable chronic low back pain (CLBP) associated with multifidus muscle dysfunction.

Multifidus: Your spine is supported by the multifidus, a powerful back muscle. Erector spinae: The back muscle known as the erector spinae helps you stand up straight by extending your trunk. 3 ...