Perfection of the method of the quantitative estimation of the regulatory and adaptive capacities of the organism as the way to the objective characteristic of the adaptation process

The article analyzes the parameters of cardiorespiratory synchronism (CRS) depending on the tonus of the autonomic nervous system in order to evaluate the role of the vegetative index of Kerdo as a factor-argument to improve the method of the diagnosis of the human body's regulatory and adaptive capacities. Existing step by step method for the finding of the minimum bound of the synchronization range can be improved by the forecast of the minimum bound that is necessary for tests with the given breathing frequency. Comparative analysis of CRS-parameters in the examinees with sympathicotonia and vagotonia identified the significant disparity between the value of «the difference between initial heart rate and the minimum bound» (in the cardiac cycles). The link between the autonomic nervous system and the minimum bound of the synchronization range will reduce the number of tests for evaluation of the minimum bound, especially in the examinees with vagotonia for which “the difference between initial heart rate and the minimum bound” is bigger in 3.5 times.