Posterolateral view of the lumbar spine

Bones of the Lumbar Spine and Pelvis

The low back is defined by the lumbar spine, composed of 5 vertebrae, named L1-L5. The pelvis is defined by the bones of the pelvic girdle.

Stretch of the gluteus medius (and other hip abductor musculature)

What is the “True” Function of the Gluteus Medius?

The major function of the gluteus medius is its “reverse” closed-chain action of pelvic depression at the hip joint to stabilize the pelvis when walking.

extension mobilization stretch for the thoracic spine on an exercise ball

The Thoracic Spine… The Silent Saboteur

There is an old saying that no posture is bad unless you get stuck in it. The problem is that the thoracic spine often does get stuck in bad posture.