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.
Here's why that matters: Your glutes are one of your body's largest and most powerful muscles. Yet sitting for hours a day at your job can cause these muscles to forget how to fire. That makes you weaker in nearly every lower body exercise. What's more, weak glutes can cause your pelvis to tilt forward.