title: ÐÐµÑÐ¾Ð´ Ð¼ÑÐ»ÑÑÐ¸ÑÐµÐ³Ð¼ÐµÐ½ÑÐ½ÑÑ Ð¾ÑÐ²ÐµÑÐ¾Ð² (ÐÐ¡Ð) Ð½Ð° ÑÐ»ÐµÐºÑÑÐ¾ÑÑÐ¸Ð¼ÑÐ»ÑÑÐ¸Ñ ÑÐ¿Ð¸Ð½Ð½Ð¾Ð³Ð¾ Ð¼Ð¾Ð·Ð³Ð°
title: Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÑÐºÐ°Ñ ÑÐ°Ð±Ð¾ÑÐ°
titleType: Subtitle
Creators: name: Ð¢ÑÐ°Ð²Ð¸Ð½Ð°, ÐÐ°ÑÑÑ
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2016
Subjects: Ð²Ð¾Ð·Ð±ÑÐ´Ð¸Ð¼Ð¾ÑÑÑ
Ð¼Ð¾ÑÐ¾Ð½ÐµÐ¹ÑÐ¾Ð½
ÑÐ¿Ð¸Ð½Ð½Ð¾Ð¹ Ð¼Ð¾Ð·Ð³
Ð¿Ð¾ÑÑÐ½Ð¸ÑÐ½Ð¾Ðµ ÑÑÐ¾Ð»ÑÐµÐ½Ð¸Ðµ
ÑÐµÐ»Ð¾Ð²ÐµÐº
Ð½ÐµÐ¸Ð½Ð²Ð°Ð·Ð¸Ð²Ð½Ð¾Ðµ ÑÐµÑÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ
Ð¼ÐµÑÐ¾Ð´ Ð¼ÑÐ»ÑÑÐ¸ÑÐµÐ³Ð¼ÐµÐ½ÑÐ½ÑÑ Ð¾ÑÐ²ÐµÑÐ¾Ð²
ÐºÑÐ°Ð½Ð¸Ð¾-ÐºÐ°ÑÐ´Ð°Ð»ÑÐ½Ð¾Ðµ ÑÐ¼ÐµÑÐµÐ½Ð¸Ðµ
excitability
motoneuron
spinal cord
lumbar enlargement
human
non-invasive testing
the method of multi-segment responses
cranio-caudal displacement

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description: Multisegmental muscle responses are reflexes in the leg muscles evoked by transcutaneous electrical spinal cord stimulation over Th11-Th12 vertebrae. These responses have to evaluate the excitability of lumbosacral motor neurons innervating the leg muscles. The activation of several myotomes is reached by the large surface of stimulating electrode (45Ñ45mm), and it is still unknown will displacement of stimulating electrode affect the magnitude of multisegmental responses or not. The study was performed in 7 young volunteers. The magnitude of multisegmental responses was recorded with stimulation at standard zone and with step-by step displacement (totally 49 positions). It was found that crania-caudal and lateral displacement of the stimulating electrode by 5-10-15 mm reduce the response amplitude by 30-50 %, with statistically significant difference (p&lt;0.001). The dependence between magnitude of multisegmental responses and displacement of stimulating electrode can be described by polynomial function of 4th degree.