A pelvic damage in the sense of the SMT® produces, with increasing intensity and increasing damage and age of the patients a permanently increasing tension of the muscles of the buttocks, which in the course of time spreads all over the pelvic muscles. This pathological tension again spreads from the pelvis centrifugally into the whole body.
The reason for the inefficiency of the back muscles is not the result of a lack of training, but it is its tension. A tensed-up muscle also loses its functional possibility, because it is not flexible enough, to do its duty.
Now, what happens, when the back muscles tense up, due to a, centrifugally from the pelvis emerging, increasing tension? There happens, due to the pelvic damage:
The mechanical-anatomic background is, that the spine is a staff, which is composed of single joints. The back muscles are tied to this staff. The back muscles are running from below to above and produce a tractive power, which allows human beings the erection.
The power and with it the muscle mass of the the back muscles, which are necessary for erection, is a constant factor for everybody, which is defined in extent and weight of the upper body.
A pelvic damage in the sense of the SMT® causes more tension in the back muscles, but also a cold and physical and psychical overload leads to still more tension in the back, which means that the traction at the spine increases and it consequently must give in.
The spine however only can give in when it becomes curved.
More muscles = more tension = crooked spines.
This happens in form of a hyperkyphosis (round back), a hyperlordosis (hollow back) and/or a scoliosis (laterally crooked spine).
Why and how the spine takes on certain forms, will be explained in the following chapters.