Chest wall volumes during inspiratory loaded breathing in COPD patients
Open accessAbstract
Chest wall volumes and breathing patterns of 13 male COPD patients were evaluated at rest and during inspiratory loaded breathing (ILB). The sternocleidomastoid (SMM) and abdominal muscle activity was also evaluated. The main compartment responsible for the tidal volume at rest and during ILB was the abdomen. During ILB patients exhibited, in addition to increases in the ratio of inspiratory time to total time of the respiratory cycle and minute ventilation, increases (p<0.05) in the chest wall tidal volume by an increase in abdomen tidal volume as a result of improvement of end chest wall inspiratory volume without changing on end chest wall expiratory volume. The SMM and abdominal muscle activity increased 63.84% and 1.94% during ILB. Overall, to overcome the load imposed by ILB, COPD patients improve the tidal volume by changing the inspiratory chest wall volume without modifying the predominant mobility of the abdomen at rest and without affecting the end chest wall expiratory volume.
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Forced abdominal expiration may be a normal physiological adaptation in patients with COPD and pulmonary hyperinflation, but is typically dysfunctional in the absence of these conditions.
“This may be a normal physiological adaptation in patients with COPD and pulmonary hyperinflation, but is typically dysfunctional in the absence of these conditions [63].”
From Dysfunctional breathing: a review of the literature and proposal for classification (2016) · cites this paper as [63]
The Introduction (page unavailable) reports enhanced abdominal-muscle use in patients with COPD and describes some changes as adaptations. It does not identify forced abdominal expiration as a normal adaptation; instead, it says most breathing abnormalities suggest respiratory-muscle malfunction. The paper also does not establish that forced abdominal expiration is typically dysfunctional in people without COPD or hyperinflation. (LLM, conf=0.78)
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Dysfunctional breathing: a review of the literature and proposal for classification
Boulding, R., Stacey, R., Niven, R., & Fowler, S. J. (2016) · European Respiratory Review · doi:10.1183/16000617.0088-2015 · Cited by 372 · see citing works
- Authors
- Coutinho Myrrha, M. A., Vieira, D. S. R., Moraes, K. S., Lage, S. M., Parreira, V. F., & Britto, R. R.
- Affiliations
- Universidade Federal de Minas Gerais (BR)
- Corresponding author
- Britto, Raquel Rodrigues
- Venue
- Respiratory Physiology & Neurobiology
- Publisher
- Elsevier BV
- Published
- 2013-08
- Volume
- 188
- Issue
- 1
- Pages
- 15-20
- ISSN
- 1569-9048 (ISSN-L)
- OpenAlex
- W2065516684
- Cited by
- 30
- References
- 2
- Citations by year
- 2026: 1 · 2025: 2 · 2024: 1 · 2022: 5 · 2021: 1 · 2020: 5 · 2019: 1 · 2018: 3 · 2017: 3 · 2016: 4 · 2015: 3 · 2014: 1
- FWCI
- 2.17
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Licence
- www.elsevier.com/tdm/userlicense/1.0/ (tdm)
- www.elsevier.com/legal/tdmrep-license (tdm)
- www.elsevier.com/open-access/userlicense/1.0/ (vor, 307 d)
- doi.org/10.15223/policy-017 (stm-asf)
- doi.org/10.15223/policy-037 (stm-asf)
- doi.org/10.15223/policy-012 (stm-asf)
- doi.org/10.15223/policy-029 (stm-asf)
- doi.org/10.15223/policy-004 (stm-asf)
- Locations
- Respiratory Physiology & Neurobiology (publishedVersion)
- PubMed (publishedVersion)
- Funders
- CNPq (Conselho Nacional de Desenvolvimento Científico e Tecnológico (302913/2008-4)
- FAPEMIG (Fundação de Amparo à Pesquisa do estado de Minas Gerais (PPM00072-09)
- PRPq (Pró-Reitoria de Pesquisa – UFMG)
- 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
- Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Neuroscience of respiration and sleep
- Keywords
- chronic obstructive pulmonary disease, chest wall volume, tidal volume, abdominal muscle activity, sternocleidomastoid muscle, breathing pattern, inspiratory effort, end-expiratory lung volume
- MeSH terms
- Adult, Aged, Inhalation, Cross-Sectional Studies, Electromyography, Female, Forced Expiratory Volume, Humans, Male, Middle Aged, Respiratory Mechanics, Pulmonary Disease, Chronic Obstructive, Thoracic Wall, Muscle Strength
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