Changes in the parameters of the spine (grade of kyphosis, total mobility of dorsolumbal spine, lumbal Schober's sign, finger-ground distance) within one year were studied in 103 Scheuermann-patients. In patients doing regular exercises the kyphosis did not increase and their finger-ground distance improved significantly; whilst in patients not doing regular exercises the kyphosis increased slightly though significantly, and their finger-ground distance did not improve. These result prove the beneficial effect of regular exercises.