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G I Popov

Publications and source records attributed to G I Popov.

7 recordsLinked to original sources
PubMedDate not supplied

[Interconnection of wave processes for control and performance in the movements of multisegmental biomechanical systems].

There are two main ideas in this work. First, speed and tonicity of contraction of different muscles in human movements are defined not only by specifications of the contraction apparatus, but also by specifications of the management apparatus functioning, which means a solution of the motor task. Second, the observed in human movement wave processes are the consequences of the wave processes in the systems regulating movements of different parts of the body. Some experimental data observed earlier are discussed in terms of the proposed ideas.

Biomechanical Phenomena↗
PubMedDate not supplied

[Modelling the wave movement of a multisegment biomechanical system].

Modeling of wave motion of human body's multi-segment biomechanical system by examination of forced transverse oscillations of one-dimensional bar system with distributed parameters is performed in javelin throwing. Energy flow value under different changes of model parameters is investigated. The experimental data showing wave front motion and transformation of spectral density of oscillations from segment to segment of the thrower's body are discussed. Share of the energy transferred along the body's segments in the total energy of javelin release is 70-72 per cent according to theoretical estimates for concrete model parameters, and 63-75 per cent according to the experimental data for 8 attempts.

Biomechanical Phenomena↗
PubMedDate not supplied

[Muscle energy transfer during a given wave-like movement of human body segments].

The paper deals with a movement of two voluntary segments fixed in a joint and connected by a muscle in a multi-segment biomechanical system of human body. The muscle model is a four-element mechanical system. The mechanical movement energy brought into the "segments-muscle" system from the segments preceding the next ones is studied. The movement in which the total multi-segment system of the human body participates is described by the wave equation. Conditions concerning applying active muscle efforts and correlating velocities of muscle ends movement which provide the maximal value of transferred energy have been found. It is shown that the use of "artificial muscles" type devices promotes activization of energy transfer processes between segments.

Biomechanical Phenomena↗