Back pains are the objects of attention of several medical disciplines. The clear communication requires a careful examination. From the standpoint of therapeutic possibilities the vertebrogenic disorder should be considered in the area of anatomical and biomechanical, viewed as a consequence of external strengths, but always in view of clinical evaluation of internal strengths acting upon the spině. In that we consider stabilization (postural) muscular function connected with the quality of controlling processes of CNS. Each pointed movement is transferred into the posture as a whole. The transfer of stabilization into the insertionassociated regions activates coordination of muscies strengthening the spině. Extensors of spině are harmoniously activated with deep flexors of the neck and muscular coordination between diaphragm, abdominal muscies and pelvic floor, which stabilize the spině from the anterior side by means of intraabdominal pressure. Under pathological conditions we observed insufficiency in the diaphragm function, disorder in timing during the balance of diaphragm with abdominal muscies, disorder in the initial position of thorax during stabilization of the spině connected with imbalance between upper and lower fixators of thoraxand predominance in the function of superficial spině extensors. The examination of stabilization function is performed by means of specific tests. In spite of the differences of morphological findings and their clinical anifestations, exercise is the dominant proceduře in conservative treatment for influencing the statě by means of internal strengths. The therapeutic concept is dominated by education oriented to the change of muscular balance during stabilization.

        Key words: vertebrogenic complaints, spině extensors, spině stabilization, muscular balance, inter¬nal strengths