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.
A certain degree of anterior pelvic tilt is normal and usually unproblematic. Excessive APT, on the other hand, leads to poor exercise technique and increased risk of knee pain, lower back pain/injuries, and other musculoskeletal disorders, all of which in turn exacerbate APT.