[Reproduction by means of a methematical model of the dynamic characteristics of human vertical posture maintenance].

Some peculiarities of invisible oscillations of man's body during his standing are reproduced using a mathematical model. The stability of the corresponding dynamic system with two delayed feedbacks and its behaviour in response to irregular and regular effects has been investigated. The results are compared with the experimental data. It is suggested that the mathematical model satisfactorily reflects principal peculiarities of the process of equilibrium support of man's body.