Surface electromyography (sEMG) of extradiaphragm respiratory muscles in healthy subjects: A systematic review

The aim of this systematic review was to examine procedures used and outcome measures reported from surface EMG (sEMG) of extradiaphragm inspiratory muscles in healthy people. Relevant articles were searched using the concepts “electromyography (EMG)”, “respiratory muscles (sternocleidomastoid [SM],...

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Bibliographic Details
Published in:Journal of electromyography and kinesiology 2018-10, Vol.42, p.123-135
Main Authors: Cabral, Elis E.A., Fregonezi, Guilherme A.F., Melo, Luana, Basoudan, Nada, Mathur, Sunita, Reid, W. Darlene
Format: Article
Language:English
Subjects:
Breathing exercises
Electromyography
Electromyography - methods
Electromyography - standards
Healthy Volunteers
Humans
Respiratory muscles
Respiratory Muscles - physiology
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Summary:The aim of this systematic review was to examine procedures used and outcome measures reported from surface EMG (sEMG) of extradiaphragm inspiratory muscles in healthy people. Relevant articles were searched using the concepts “electromyography (EMG)”, “respiratory muscles (sternocleidomastoid [SM], scalene, intercostal [IC] and parasternal)” and “healthy” in the electronic databases: MEDLINE, PubMed, EMBASE, Cochrane CENTRAL and Database of Systematic Reviews, CINAHL, SPORTDiscus, LILACS, and PEDro. Twenty-five papers were included and quality assessment was performed using an adapted Downs and Black checklist. Twenty-eight percent of included papers were classified as moderate quality and the rest were low quality. The SM was the muscle most often investigated. Description of EMG techniques were often incomplete for features such as the procedure before electrode placement, description of the surface electrodes, the EMG detection mode and amplification. Of note, descriptions of the IC muscle electrode positioning varied widely. Comparison of outcomes among studies was challenging because of the very diverse EMG outcomes reported. There are many controversies regarding methods and technique used to assess sEMG of extradiaphragm inspiratory muscles. Therefore, studies with higher methodological quality utilizing standardized EMG procedures including electrode positioning will enable accurate and reliable comparison among studies of the extradiaphragm inspiratory muscles.
ISSN:1050-6411
1873-5711
DOI:10.1016/j.jelekin.2018.07.004