Air Stacking: A Detailed Look Into Physiological Acute Effects on Cough Peak Flow and Chest Wall Volumes of Healthy Subjects.
BACKGROUND: Air stacking (AS) is a lung insufflation method that requires the use of a manual insufflator to provide air volumes higher than inspiratory capacity. Neuromuscular patients benefit the most from the maneuver; however, the acute effects of AS in healthy subjects are still unclear. METHOD...
| Publicado en: | Respiratory Care Vol. 62; no. 4; pp. 432 - 444 |
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| Autores principales: | , , , , , |
| Formato: | research tables/charts tracings Journal Article |
| Publicado: |
Mary Ann Liebert, Inc.
Apr2017
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=122250255&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 122250255 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 00201324 4GG jtl: Respiratory Care issn: 00201324 maglogo: N pubinfo: dt: Apr2017 vid: 62 iid: 4 pid: 1365 pub: Mary Ann Liebert, Inc. place: New Rochelle, New York artinfo: ui: 122250255 122250255 122250255 10.4187/respcare.05189 122250255 ppf: 432 ppct: 12 formats: fmt: @attributes: type: P tig: atl: Air Stacking: A Detailed Look Into Physiological Acute Effects on Cough Peak Flow and Chest Wall Volumes of Healthy Subjects. aug: au: Sarmento, Antonio Dornelas de Andrade, Armèle F. Lima, Illia Nadinne D. F. Aliverti, Andrea de Freitas Fregonezi, Guilherme Augusto Resqueti, Vanessa R. affil: PneumoCardioVascular Lab, Hospital Universitário Onofre Lopes, Empresa Brasileira de Servicos Hospitalares (EBSERH), Universidade Federal do Rio Grande do Norte (UFRN), Natal RN, Brazil sug: subj: Insufflation Cough Neuromuscular Diseases Human Male Female Peak Expiratory Flow Rate Cross Sectional Studies Plethysmography Adult Descriptive Statistics Data Analysis Software Wilcoxon Signed Rank Test Repeated Measures One-Way Analysis of Variance Friedman Test Post Hoc Analysis Two-Tailed Test Adult: 19-44 years Male Female ab: BACKGROUND: Air stacking (AS) is a lung insufflation method that requires the use of a manual insufflator to provide air volumes higher than inspiratory capacity. Neuromuscular patients benefit the most from the maneuver; however, the acute effects of AS in healthy subjects are still unclear. METHODS: Twenty healthy subjects (8 males) were studied by optoelectronic plethysmography to investigate the immediate effects of AS on cough peak flow, operational volume variations, distribution of these volumes in the chest wall compartments (pulmonary rib cage, abdominal rib cage, and abdominal), breathing pattern, and shortening velocity of the respiratory muscles during a protocol that included vital capacity maneuvers and spontaneous coughs before and after AS. RESULTS: Statistically significant increases in cough peak flow (P < .03) and inspiratory capacity (P < .001) were found immediately after AS. During its application, the pulmonary rib cage compartment was the largest contributor (P = .002) to chest wall volume displacement. A significant increase in chest wall tidal volume (P < .001), mainly in the pulmonary rib cage (P < .001), was observed. Significant increases (P < .001) in end-inspiratory chest wall volume were observed with main distribution in pulmonary (P < .001) and abdominal rib cage (P = .01). Significant increases in shortening velocity index of inspiratory muscles (P < .001), expiratory muscles (P < .001), and diaphragm (P < .001) were also observed. In addition, significant decreases in expiratory time (P < .001) and increases in duty cycle (P = .02), breathing frequency (P = .02), minute ventilation (P < .001), maximum inspiratory (P < .001), and expiratory flow (P < .001) were observed. CONCLUSIONS: In healthy subjects, cough peak flow and chest wall volumes can be increased immediately after the application of the AS maneuver. pubtype: Academic Journal doctype: research tables/charts tracings Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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