Assessment of Inspiratory Muscle Activation using Surface Diaphragm Mechanomyography and Crural Diaphragm Electromyography

The relationship between surface diaphragm mechanomyography (sMMGdi), as a noninvasive measure of inspiratory muscle mechanical activation, and crural diaphragm electromyography (oesEMGdi), as the invasive gold standard measure of diaphragm electrical activation, had not previously been examined. To...

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Published inConference proceedings (IEEE Engineering in Medicine and Biology Society. Conf.) Vol. 2018; pp. 3342 - 3345
Main Authors Lozano-Garcia, Manuel, Sarlabous, Leonardo, Moxham, John, Rafferty, Gerrard F., Torres, Abel, Jolley, Caroline J., Jane, Raimon
Format Conference Proceeding Journal Article
LanguageEnglish
Published United States IEEE 01.07.2018
Subjects
Biomedical measurement
Electrodes
Entropy
Loading
Mechanical variables measurement
Muscles
Protocols
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ISSN1557-170X
1558-4615
DOI10.1109/EMBC.2018.8513046

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Summary:The relationship between surface diaphragm mechanomyography (sMMGdi), as a noninvasive measure of inspiratory muscle mechanical activation, and crural diaphragm electromyography (oesEMGdi), as the invasive gold standard measure of diaphragm electrical activation, had not previously been examined. To investigate this relationship, oesEMGdi and sMMGdi were measured simultaneously in 6 healthy subjects during an incremental inspiratory threshold loading protocol, and analyzed using fixed sample entropy (fSampEn). A positive curvilinear relationship was observed between mean fSampEn sMMGdi and oesEMGdi (r = 0.67). Accordingly, an increasing electromechanical ratio was also observed with increasing inspiratory load. These findings suggest that sMMGdi could provide useful noninvasive measures of inspiratory muscle mechanical activation.
ISSN:1557-170X
1558-4615
DOI:10.1109/EMBC.2018.8513046