Orthopaedic studies of Prof. Dr. med. Büschelberger prove that the femoral head of a newborn child is oriented ideally to the acetabulum.
On this occasion, the legs are drawn approx. 100 degrees, while they are spread about 40 degrees. The hip joints of a baby are still immature, wherefore the ergonomical spread-squat-position supports positively the anatomically correct maturation of the still gristly, childish hip. While wearing a hydrostatic pressure occures which promotes the ossification.