[Variation approach to the problem of isoenergetic regulation of movement].

It was shown theoretically that trajectories of movements might be invariant to energy expenditure of the organism. In this instance control parameters are changed discontinuously, and force actions of muscles are characterized by potentials. The analysis of well-known experimental data, as well as special investigations of human walking and forearm rhythmic movements confirmed that the activity of the muscle and nervous systems was adapted to the isoenergetic control.