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Measuring breathing patterns and respiratory movements with the respiratory movement measuring instrument
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Medicinska och farmaceutiska vetenskapsområdet, centrumbildningar mm, Center for Clinical Research Dalarna. Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Neuroscience, Physiotherapy. Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences, Respiratory Medicine and Allergology.
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences, Respiratory Medicine and Allergology.
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences, Clinical Physiology.
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences, Clinical Physiology.
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2016 (English)In: Clinical Physiology and Functional Imaging, ISSN 1475-0961, E-ISSN 1475-097X, Vol. 36, no 5, 414-420 p.Article in journal (Refereed) Published
Abstract [en]

INTRODUCTION: The respiratory movement measuring instrument (RMMI) is a laser-based non-invasive technique to measure breathing patterns and respiratory movements (RMs). Little knowledge is known about the ability of the RMMI to measure breathing patterns and the correlation between RMs and breathing volumes.

OBJECTIVES: One aim was to investigate whether the RMMI could discriminate between normal versus abdominal versus high costal breathing patterns in different body positions. A second aim was to determine the correlation between RMs and breathing volumes in different body positions.

METHOD: Twenty adult, healthy subjects (10 women) were included in the study. The RMMI was used to study the above-mentioned breathing patterns in supine, sitting and standing positions. A subgroup of 12 subjects (6 women) simultaneously performed measurements of breathing volumes while RMs were recorded.

RESULTS: The RMMI was able to discriminate between different breathing patterns in different body positions (P<0·001). The upper thoracic contribution to RMs in the sitting position was 47% for natural breathing, 32% for abdominal breathing and 64% for high costal breathing; similar results were found in the supine and standing positions. A strong correlation was observed between RMs as measured by the RMMI and different breathing volumes in all three body positions (Spearman's rho 0·86-1·00).

CONCLUSION: The RMMI can be used to measure and analyse different breathing patterns in different body positions, and the correlation between measured RMs and breathing volumes is strong.

Place, publisher, year, edition, pages
2016. Vol. 36, no 5, 414-420 p.
Keyword [en]
body positions, breathing volumes, correlation, laser distance sensors, non-invasive technique
National Category
Respiratory Medicine and Allergy
Identifiers
URN: urn:nbn:se:uu:diva-278041DOI: 10.1111/cpf.12302ISI: 000383447500011PubMedID: 26373687OAI: oai:DiVA.org:uu-278041DiVA: diva2:906087
Funder
Swedish Heart Lung Foundation
Available from: 2016-02-23 Created: 2016-02-23 Last updated: 2017-11-30Bibliographically approved
In thesis
1. Dysfunctional breathing: Clinical characteristics and treatment
Open this publication in new window or tab >>Dysfunctional breathing: Clinical characteristics and treatment
2016 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

Background: Dysfunctional breathing (DB) is a respiratory disorder involving an upper chest breathing pattern and respiratory symptoms that cannot be attributed to a medical diagnosis.

Aim: The overall aim of this thesis was to describe patients with DB and investigate clinical outcomes after physiotherapy treatment.

Methods: Study I was descriptive and comparative, that included 25 patients with DB and 25 age- and sex-matched patients with asthma. Health-related quality of life (HRQoL), anxiety, depression, sense of coherence, influence on daily life due to breathing problems, respiratory symptoms, emergency room visits and asthma medication were investigated. Study II, a 5-year follow-up study based on the same sample as study I (22 patients with DB, 23 patients with asthma), studied treatment outcomes after information and breathing retraining. Study III was descriptive and correlational (20 healthy subjects), investigating whether the Respiratory Movement Measuring Instrument (RMMI) can discriminate between different breathing patterns in varying body positions. Study III also studied correlations between respiratory movements and breathing volumes (12 healthy subjects). Study IV was a single-subject AB design with follow-ups. Self-registered patient-specific respiratory symptoms and respiratory-related activity limitations and breathing pattern (measured with the RMMI) were evaluated after an intervention consisting of information and breathing retraining in five patients with DB.

Results: Patients with DB had lower HRQoL (SF-36): vitality (mean 47 vs. 62), social functioning (70 vs. 94) and role emotional (64 vs. 94) (p<0.05) than patients with asthma. The DB group had a higher prevalence of anxiety (56% vs. 24%) and experienced more breathing problems than the asthma group. Patients with DB had made several emergency room visits and had been treated with asthma medication. At the 5-year follow-up, patients with DB showed improved HRQoL (SF-36): physical function 77 to 87 (p=0.04), decreased breathing problems and emergency room visits, and they were not treated with asthma medication. The RMMI can differentiate between different breathing patterns in different body positions. Strong correlations between respiratory movements and breathing volumes were observed (rs 0.86-1.00). The results in study IV indicate that patients with DB benefit from information and breathing retraining regarding decreased respiratory symptoms and activity limitations and improved breathing pattern.

Place, publisher, year, edition, pages
Uppsala: Acta Universitatis Upsaliensis, 2016. 67 p.
Series
Digital Comprehensive Summaries of Uppsala Dissertations from the Faculty of Medicine, ISSN 1651-6206 ; 1239
Keyword
dysfunctional breathing, breathing pattern, breathing retraining, respiratory movement measuring instrument, respiratory symptoms, respiratory-related activity limitations
National Category
Medical and Health Sciences
Research subject
Physiotherapy
Identifiers
urn:nbn:se:uu:diva-295667 (URN)978-91-554-9629-6 (ISBN)
External cooperation:
Public defence
2016-09-16, Falu lasarett, Föreläsningssalen, Söderbaums väg 8, Falun, 10:00 (Swedish)
Opponent
Supervisors
Available from: 2016-08-26 Created: 2016-06-08 Last updated: 2016-09-05

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Hagman, CarinaJanson, ChristerMalinovschi, AndreiHedenström, HansEmtner, Margareta
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