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Changes in pCO2, symptoms, and lung function of asthma patients during capnometry-assisted breathing training

Ritz, Thomas and Meuret, Alicia E. and Wilhelm, Frank H. and Roth, Walton T.. (2009) Changes in pCO2, symptoms, and lung function of asthma patients during capnometry-assisted breathing training. Applied psychophysiology and biofeedback, 34 (1). pp. 1-6.

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Abstract

In a recent pilot study with asthma patients we demonstrated beneficial outcomes of a breathing training using capnometry biofeedback and paced breathing assistance to increase pCO(2) levels and reduce hyperventilation. Here we explored the time course changes in pCO(2), respiration rate, symptoms and lung function across treatment weeks, in order to determine how long training needs to continue. We analyzed in eight asthma patients whether gains in pCO(2) and reductions in respiration rate achieved in home exercises with paced breathing tapes followed a linear trend across the 4-week treatment period. We also explored the extent to which gains at home were manifest in weekly training sessions in the clinic, in terms of improvement in symptoms and spirometric lung function. The increases in pCO(2) and respiration rate were linear across treatment weeks for home exercises. Similar increases were seen for in-session measurements, together with gradual decreases in symptoms from week to week. Basal lung function remained stable throughout treatment. With our current protocol of paced breathing and capnometry-assisted biofeedback at least 4 weeks are needed to achieve a normalization of pCO(2) levels and reduction in symptoms in asthma patients.
Faculties and Departments:07 Faculty of Psychology
07 Faculty of Psychology > Departement Psychologie > Ehemalige Einheiten Psychologie > Abteilung Klinische Psychologie und Psychiatrie
07 Faculty of Psychology > Departement Psychologie > Ehemalige Einheiten Psychologie > Psychophysiologie (Wilhelm)
UniBasel Contributors:Wilhelm, Frank H
Item Type:Article, refereed
Article Subtype:Research Article
Bibsysno:Link to catalogue
Publisher:Springer
ISSN:1090-0586
Note:Publication type according to Uni Basel Research Database: Journal article -- The final publication is available at link.springer.com via https://doi.org/10.1007/s10484-008-9070-1
Language:English
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Last Modified:28 Sep 2017 15:42
Deposited On:22 Mar 2012 13:42

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