[Evaluation of the efficacy of treating the lumbosacral pain syndrome according to the degree of respiratory rhythm irregularity upon inclining the body forward].

The authors suggest that the effectiveness of the treatment for lumbosacral pain should be assessed with the help of registration in the course of treatment of irregularity of the respiration rhythm (H) upon maximal bending forward for 30 sec and the angle of this bending (alpha). H is determined by the following formula: (Formula: see text) where T1 is the duration of the i-respiratory wave, i is the ordinal number of the respiratory wave, n is the number of registered respiratory waves upon bending. The next is calculation of tenderness (A): (Formula: see text) and the efficacy of treatment (E): (Formula: see text) where A1 and A2 are parameters of tenderness before and after the treatment, respectively.