EMG-EMG Coherence Analysis of Elbow and Shoulder Muscles

Motor coordination can be described by the activation of a few intermuscular coordination patterns, or muscle synergies. Muscle synergy can be defined as a relatively fixed pattern of activation across a set of muscles. The neural mechanisms underlying muscle synergies remain to be fairly unknown. Through a muscle synergy study [13], co-activation in muscle pairs was discovered through a non-negative matrix factorization: NMF) analysis. In order to evaluate the same muscles under the frequency domain, coherence analysis: a correlational method) was used. Additionally, a comparison can be made to determine if the resulting muscle pairs overlap with the muscle pairs found through the synergy analysis. Using coherence analysis, it was evaluated whether muscle members co-activated within a muscle synergy are correlated in the frequency domain, suggesting a common fixed drive in the central nervous system.

Name thesis:degree_name

Master of Science (MS)

Level thesis:degree_level

Thesis

Discipline thesis:degree_discipline

Mechanical Engineering and Materials Science

Year dc:date.available

2013

Author dc:creator

• Stephen, Manu

Contributors dc:contributor

• David Peters

• EMG
• Mechanical Engineering

Language dc:language

English (en)

DOI

https://doi.org/10.7936/K7H41PHN

OAI identifier oai:identifier

oai:openscholarship.wustl.edu:etd-2211