http://www.cnr.it/ontology/cnr/individuo/prodotto/ID196422

Thyroarytenoid muscle activity during loaded and nonloaded breathing in adult humans (Articolo in rivista)

Type

Prodotto della ricerca (Classe)
Articolo in rivista (Classe)

Label

Thyroarytenoid muscle activity during loaded and nonloaded breathing in adult humans (Articolo in rivista) (literal)

Anno

1991-01-01T00:00:00+01:00 (literal)

Alternative label

Insalaco G, Kuna ST, Costanza BM, Catania G, Cibella F, Bellia V (1991)
Thyroarytenoid muscle activity during loaded and nonloaded breathing in adult humans
in Journal of applied physiology (1985); American Physiological Society, Bethesda (Stati Uniti d'America)
(literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

Insalaco G, Kuna ST, Costanza BM, Catania G, Cibella F, Bellia V (literal)

Pagina inizio

2010 (literal)

Pagina fine

2416 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url

http://jap.physiology.org/content/70/6/2410.long (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

70 (literal)

Rivista

Journal of applied physiology (Rivista)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali

7 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo

6 (literal)

Note

ISI Web of Science (WOS) (literal)
PubMe (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

Consiglio Nazionale delle Ricerche, Istituto di Fisiopatologia Respiratoria, Palermo Department of Internal Medicine, The University of Texas Medical Branch, Galveston, Texas Clinica Pneumologica dell'Università, Palermo (literal)

Titolo

Thyroarytenoid muscle activity during loaded and nonloaded breathing in adult humans (literal)

Abstract

Previous fiber-optic studies in humans have demonstrated narrowing of the glottic aperture in expiration during application of expiratory resistive loads. Nine healthy subjects were studied to determine the effect of expiratory resistive loads on the electromyographic activity of the thyroarytenoid (TA) muscle, a vocal cord adductor. Four of the nine subjects also underwent the application of inspiratory resistive loads and voluntary prolongation of either inspiratory (TI) or expiratory (TE) time. TA activity was recorded by intramuscular hooked-wire electrodes. During quiet breathing in all subjects, the TA was phasically active on expiration and often tonically active throughout the respiratory cycle. TA expiratory activity progressively increased with increasing levels of expiratory load. Inspiratory loads resulted in increased TA \"inspiratory\" activity. Voluntary prolongation of TE to times similar to those reached during loaded breathing induced increases in TA expiratory activity similar to those reached during the loaded state. Voluntary prolongation of TI was associated with an increase in TA inspiratory activity. Similar increases in TI during inspiratory loading or voluntary conditions were associated with comparable increases in TA inspiratory activity in three of the four subjects. In conclusion, increased activation of TA during the application of expiratory resistive loads implies that the reported narrowing of glottic aperture during expiratory loading is an active phenomenon. Changes in activation of the TA with resistive loads appear to be related to changes in respiratory pattern (literal)

Editore