We cannot equate this with a purely biological freedom or vitality, or spontaneity. Bergson and His Philosophy J. Alexander Gunn. It is a more serious difficulty that Paul knows of no Longobardic king with a name which we can equate with Sceaf.
But this posture makes your pelvis rock forward into an anterior pelvic tilt, which consequently creates an increased lumbar curve (lordosis). Unfortunately, other tissues such as the muscles described above adapt to this posture over time, which contributes to back pain and injury.
Overview. 1  Postural lordosis is characterized by a curvature of the lower back. 2  Due to a biomechanical process known as reciprocal inhibition, when your hip flexors are tight, the gluteals, which are the opposing muscle group, become weak. 3  The pelvic tilt position is the opposite of an arched back.