Title :
Implementing a surface EMG model with accurate parameters and a force output
Author :
Wheeler, Katherine ; Kumar, Dinesh K. ; Shimada, Hirokazu ; Weghorn, Hans
Author_Institution :
Sch. of Electr. & Comput. Eng., RMIT Univ., Melbourne, VIC, Australia
Abstract :
A surface electromyogram model has been implemented with both electrical and mechanical outputs. The model has been populated with parameter values based on random distributions about experimentally observed averages. Motor unit firing rates and recruitment threshold have been defined independently for type I and type II muscle fibres. This has led to non-linear inputs to the sEMG model. The observed model outputs have been compared with experimental data. Both the electrical and mechanical outputs are shown to increase linearly with force. The rates of increase are comparable between the simulated and experimental data sets. This model is generating life-like sEMG signals and may be used to study the relationship between muscle physiology and the sEMG signal.
Keywords :
bioelectric phenomena; biomagnetism; biomechanics; electromyography; muscle; EMG; electrical outputs; mechanical outputs; motor unit firing rates; muscle physiology; recruitment threshold; surface electromyogram model; type I muscle fibres; type II muscle fibres; Electromyography; Firing; Force; Humans; Mathematical model; Muscles; Recruitment; biceps; electromyography; force; model; sEMG;
Conference_Titel :
Biosignals and Biorobotics Conference (BRC), 2011 ISSNIP
Conference_Location :
Vitoria
Print_ISBN :
978-1-4244-8212-2
DOI :
10.1109/BRC.2011.5740673