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The shoulder is not only the most severely strained joint of the human being, but unfortunately also one of the most susceptible joints! Till now this susceptibility has been due mostly to a substantial muscular weakness in the back part of the shoulder.

As consequence of this weakness most persons, who are not very active in sports, start suffering from shoulder problems as from the age of 40. If the shoulders of sportsmen are exposed to extreme shocks and pressure, they already start suffering at young age (14 years or even younger) from this muscular weakness. As the head of the humerus is consequently no longer sufficiently stabilized, it again and again strikes against the acromion with each shot of the golf- , tennis- or handball player and moreover with each ball the handball- or volleyball player has caught! There is really a long list of sportsmen whose shoulders are exposed to such strain!

It is therefore not at all surprising that handball-, volleyball-, tennis- and golf players as well as many other sportsmen frequently suffer from chronic bursitis, irritated and damaged tendons.