Objective: to evaluate changes in systemic and cerebral hemodynamics during percutaneous electrical stimulation of the spinal cord and in combination of electrical stimulation with mechanotherapy. Methodology. The subjects underwent percutaneous electrical stimulation of the spinal cord, the duration of the session was 5 minutes. Mechanotherapy was performed using a treadmill. The subjects performed walking at a power of 25W. for 5 minutes. Hemodynamics was evaluated before and after the electrical stimulation session, as well as before and after the mechanical therapy session on the track in combination with percutaneous electrical stimulation of the spinal cord. To study systemic and regional hemodynamics, a rheograph-polyanalyzer "REAN-POLY" was used. Results. Electrical stimulation of the spinal cord does not lead to significant changes in systemic and cerebral hemodynamics. Percutaneous electrical stimulation of the spinal cord in combination with physical exertion leads to reactive changes in systemic hemodynamics, increased blood filling and venous outflow, against the background of a decrease in peripheral resistance of cerebral vessels.
Key words: electrostimulation, percutaneous electrostimulation, mechanotherapy, systemic hemodynamics, regional hemodynamics.
The study was conducted on 22 healthy men aged 18-23 years. The primary motor cortex innervating the lower limb was stimulated with transcranial magnetic stimulation. Using transcutaneous electrical stimulation of the spinal cord, evoked motor responses of the muscles of the lower extremities were initiated when electrodes were applied cutaneous between the spinous processes in the Th11-Th12 projection. Research protocol: Determination of the thresholds of BMO of the muscles of the lower extremities during TESCS; determination of the BMO threshold of the TA muscle in TMS; determination of the thresholds of the BMO of the muscles of the lower extremities during TESCS against the background of 80% and 90% TMS. It was found that magnetic stimulation of the motor cortex of the brain leads to an increase in the excitability of the neural structures of the lumbar thickening of the spinal cord and an improvement in neuromuscular interactions.
Key words: transcranial magnetic stimulation, transcutaneous electrical stimulation of the spinal cord, neural networks, excitability, neuromuscular interactions.
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