Ultrasound-guided motor unit scanning electromyography.

ABSTRACT:

Introduction/aims

Measuring the spatial dimensions of a single motor unit remains a challenging problem, and current techniques, such as scanning electromyography (EMG), tend to underestimate the true dimensions. In this study we aimed to estimate more accurately the dimensions of a single motor unit by developing a clinically applicable scanning EMG protocol that utilizes ultrasound imaging to visualize and target a transect through the center of a single motor unit.

Methods

Single motor unit twitches in the tibialis anterior muscles of healthy volunteers were elicited via stimulation of the fibular nerve, visualized with ultrasound, and targeted with an intramuscular EMG electrode. The electrode was moved by hand in small steps through the motor unit territory. Ultrasound

SUBMITTER: Maitland S 

PROVIDER: S-EPMC9828660 | biostudies-literature | 2022 Dec

REPOSITORIES: biostudies-literature