Effect of upper costal and costo-diaphragmatic breathing types on electromyographic activity of respiratory muscles
Author
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Celhay, Isabel
Author
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Córdova, Rosa
Author
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Miralles Lozano, Rodolfo Isaac
Author
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Meza, Francisco
Author
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Erices, Pía
Author
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Barrientos, Camilo
Author
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Valenzuela, Saúl
Admission date
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2015-08-11T14:02:23Z
Available date
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2015-08-11T14:02:23Z
Publication date
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2015
Cita de ítem
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The Journal of Craniomandibular & Sleep Practice 2015 VOL. 33 NO. 2
en_US
Identifier
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DOI: 10.1179/2151090314Y.0000000011
Identifier
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https://repositorio.uchile.cl/handle/2250/132565
General note
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Artículo de publicación ISI
en_US
Abstract
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Aim: To compare electromyographic (EMG) activity in young–adult subjects with different breathing types.
Methodology: This study included 50 healthy male subjects with complete natural dentition, and no history
of orofacial pain or craniomandibular-cervical-spinal disorders. Subjects were classified into two groups:
upper costal breathing type, and costo-diaphragmatic breathing. Bipolar surface electrodes were located
on sternocleidomastoid, diaphragm, external intercostal, and latissimus dorsi muscles. Electromyographic
activity was recorded during the following tasks: (1) normal quiet breathing; (2) speaking the word
‘Mississippi’; (3) swallowing saliva; and (4) forced deep breathing.
Results: Sternocleidomastoid and latissimus dorsi EMG activity was not significantly different between
breathing types, whereas diaphragm and external intercostal EMG activity was significantly higher in the
upper costal than costo-diaphragmatic breathing type in all tasks (P,0.05; Wilcoxon signed rank-sum
test).
Conclusion: Diaphragm and external intercostal EMG activity suggests that there could be differences in
motor unit recruitment strategies depending on the breathing type.