Abstract
Changes in the blood flow in the skin of the plantar surface of the hallux were investigated by laser Doppler flowmetry in eight healthy subjects during transcutaneous electrical spinal cord stimulation (tESCS) with the pulse parameters used to activate locomotion. Continuous tESCS in the area of C5–C6 vertebrae did not cause significant changes in the blood flow, while electrical stimulation at T 12–T 1 and L 1–L 2 levels resulted in an increase in skin perfusion by 22–27%. Wavelet analysis of microcirculatory fluctuations showed that tESCS induced flaxomotions in the range of sensory peptidergic fibers and enhanced the amplitude of fluctuations of microcirculation in the endothelium-dependent range. These results suggest that tESCS stimulates microcirculation in the skin mainly due to antidromic stimulation of sensory peptidergic nerve fibers, which promotes activity of microvascular endothelium, vasodilator secretion, a decrease in vascular resistance, and an increase in microcirculation.
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Original Russian Text © G.I. Lobov, N.A. Shcherbakova, R.M. Gorodnichev, A.A. Grishin, Y.P. Gerasimenko, T.R. Moshonkina, 2017, published in Fiziologiya Cheloveka, 2017, Vol. 43, No. 5, pp. 36–42.
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Lobov, G.I., Shcherbakova, N.A., Gorodnichev, R.M. et al. Effect of transcutaneous electrical spinal cord stimulation on the blood flow in the skin of lower limbs. Hum Physiol 43, 518–523 (2017). https://doi.org/10.1134/S0362119717050103
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DOI: https://doi.org/10.1134/S0362119717050103