Chest Wall Kinematics and Breathlessness During Pursed-Lip Breathing in Patients With COPD
Abstract
Background Pursed-lip breathing (PLB) is a strategy often spontaneously employed by patients with COPD during distress situations. Whether and to what extent PLB affects operational lung volume is not known. Also, conflicting reports deal with PLB capability of decreasing breathlessness. Participants and measurements Twenty-two patients with mild-to-severe COPD were studied. Volumes of chest wall (CW) compartments (rib cage [RC] and abdomen) were assessed using an optoelectronic plethysmograph. Dyspnea was assessed by a modified Borg scale. Results Compared to spontaneous breathing, patients with PLB exhibited a significant reduction (mean +/- SD) in end-expiratory volume of the CW (VCW) [VCWee; - 0.33 +/- 0.24 L, p Conclusions Changes in VCWee related to baseline airway obstruction but not to hyperinflation (FRC). By lengthening of TE and TTOT, PLB decreases VCWee and reduces breathlessness.
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Forced abdominal expiration is linked to COPD.
“| Forced abdominal expiration | 2 | [50, 51] | COPD |”
From Dysfunctional breathing: a review of the literature and proposal for classification (2016) · cites this paper as [50]
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- Authors
- Bianchi, R., Gigliotti, F., Romagnoli, I., Lanini, B., Castellani, C., Grazzini, M., & Scano, G.
- Corresponding author
- Scano, Giorgio
- Venue
- Chest
- Publisher
- Elsevier BV
- Published
- 2004-02
- Volume
- 125
- Issue
- 2
- Pages
- 459-465
- ISSN
- 0012-3692 (ISSN-L)
- OpenAlex
- W2049565302
- Cited by
- 144
- References
- 0
- Citations by year
- 2026: 5 · 2025: 3 · 2024: 2 · 2023: 4 · 2022: 3 · 2021: 5 · 2020: 6 · 2019: 2 · 2018: 5 · 2017: 6 · 2016: 4 · 2015: 12 · 2014: 8 · 2013: 7 · 2012: 13
- FWCI
- 6.44
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- CHEST Journal (publishedVersion)
- PubMed (publishedVersion)
- Florence Research (University of Florence) (submittedVersion)
- Topics
- Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Chronic Obstructive Pulmonary Disease (COPD) Research
- Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Respiratory Support and Mechanisms
- Health Sciences › Medicine › Physiology › Asthma and respiratory diseases
- Keywords
- chronic obstructive pulmonary disease, chest wall kinematics, dyspnea, abdominal volume, tidal volume, expiratory time, Borg scale, respiratory muscle work, optoelectronic plethysmography, respiratory mechanics, functional residual capacity, FEV1
- MeSH terms
- Aged, Aged, 80 and over, Biomechanical Phenomena, Dyspnea, Female, Humans, Lung Volume Measurements, Male, Middle Aged, Plethysmography, Probability, Prognosis, Respiration, Sensitivity and Specificity, Severity of Illness Index, Total Lung Capacity, Cohort Studies, Respiratory Mechanics, Multivariate Analysis, Linear Models, Statistics, Nonparametric, Pulmonary Disease, Chronic Obstructive, Thoracic Wall
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