While studying the adaptive capacity of the autonomic nervous system of 65 students aged 7-10 years with posture disorders, in 63,1 % of children pathological types of vegetative reactivity were revealed, which were more frequent in the original sympathicotonia: hypersympathicotonic type BP in 51,3 % of patients and simpaticotonici type-in 36,9 %. The pathological type of response indicates a decline in reserve capacity of the autonomic regulation and stress adaptive mechanisms.