Results: SDNN, RMSSD, SDNNi, TP, LF, and the ratio LF / HF index after treatment (respectively, 62.34  32.16; 25.14  6.10; 44.45  13.48; 1956.23  613.64; 1413.94  174.33; 3.03  0.71) increased more than before treatment (respectively 38.63  18.2; 12.61  5.39; 22.66  11.47; 1347.92  412.53; 874.15  210.32; 2.21  0.68) with p<0.05.