Low Back Pain
While there are various factors contributing to low back pain e.g. congenital and injuries, a common condition is a rotated hip. This condition produces a short leg in function (this is not an anatomical shortage). Some health care practitioners, if you see one, will tell you one leg is shorter than the other and will attempt to adjust your hip and "straighten" you out, (you can not straighten out an anatomical shortage) unfortunately without supports, as soon as you get off the table and begin walking, the poor alignment which caused the functional shortage will begin to work against you again. This shortage will put a "tweek" into the sacro-iliac joint which may revert to hip or low back pain.  As the pattern begins, the muscles on one side become dominant (most commonly on the same side as your dominant hand) and as they become stronger they rotate the hip (ileum) pulling the leg up higher into the hip socket (acetabulum) producing a "functional shortage".  Many people walk around with this condition for years before it becomes painful.

Stretching exercises and an orthotic can be very helpful in reducing the pain. The stretching will relieve the gradual shortening of the affected muscles. An orthotic will prevent the functional shortening of the leg by maintaining the normal biomechanics and posture of the foot and leg.