[Biomechanics of the motor act following destruction of the somatic feedback connections].
By means of cyclography method developed in detail by N.A. Bernstein for disclosing the changes in the physical parameters of jumps it was shown that as compared with intact animals, the speed of movements of the distal parts of the fore and hind limbs significantly decreases in animals with electro-coagulated medial lemnisci. The swing of flexion-extension in the ulnar and knee joints likewise diminishes, and the trajectory of the centre of gravity movement changes significantly. In the course of jumping from one platform to another the operated animal experiences difficulties in changing movement phases. It is suggested that the system of medial lemnisci exercises the function of internal somatic backward connection, which is necessary for the succession of micromovements within the general program of the motor act.
D000818:Animals; D001696:Biomechanical Phenomena; D001931:Brain Mapping; D002415:Cats; D005246:Feedback; D008526:Medulla Oblongata / Q000502:physiology*; D009043:Motor Activity / Q000502:physiology*; D009434:Neural Pathways; D013787:Thalamic Nuclei / Q000502:physiology*
Biomekhanika dvigatel'nogo akta posle narusheniia puteĭ somaticheskoĭ obratnoĭ sviazi