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.
However, this information is about abnormal kyphosis, which is spinal curvature causing a hunchback or slouching posture. This spinal disorder generally affects the thoracic spine and sometimes the cervical spine. Kyphosis can cause back pain, muscle fatigue, and stiffness on the mild side of the spectrum.