title: Realistic motor unit placement in a cylindrical HD-sEMG generation model.
abstract: The aim of this work is to assess an automatic optimized algorithm for the positioning of the Motor Units (MUs) within a multilayered cylindrical High Density surface EMG (HD-sEMG) generation model representing a skeletal muscle. The multilayered cylinder is composed of three layers: muscle, adipose and skin tissues. For this purpose, two different algorithms will be compared: an unconstrained random and a Mitchell's Best Candidate (MBC) placements, both with uniform distribution for the MUs positions. These algorithms will then be compared by their fiber density within the muscle and by using a classical amplitude descriptor, the Root-Mean-Square (RMS) amplitude value obtained from 64 HD-sEMG signals recorded by an 8×8 electrode grid of circular electrode during one contraction at 70% Maximum Voluntary Contraction (MVC) in both simulation and experimental conditions for the Biceps Brachii (BB) muscle. The obtained results clearly exposed the necessity to use a specific algorithm to place the MUs within the muscle representation volume in agreement with physiology.
authors.forename: Vincent
authors.initials: V
authors.lastname: Carriou
authors.forename: Jeremy
authors.initials: J
authors.lastname: Laforet
authors.forename: Sofiane
authors.initials: S
authors.lastname: Boudaoud
authors.forename: Mariam
authors.initials: M
authors.lastname: Al Harrach
mesh_terms: D000465:Algorithms; D001132:Arm; D004576:Electromyography; D006801:Humans; D009119:Muscle Contraction; D018482:Muscle, Skeletal