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Assessment of the measurement tools of dysfunctional breathing

Journal: International Journal of Osteopathic Medicine Date: 2006/03, 9(1):Pages: 34. doi: Subito , type of study: cross sectional study

Full text    (https://www.sciencedirect.com/science/article/pii/S1746068906000149)

Keywords:

carbon dioxide [1]
cross sectional study [597]
dysfunctional breathing [5]
diagnosis [263]
measurement tools [1]

Abstract:

Introduction Prevalence of dysfunctional breathing (DB) has been claimed to range from 10%5 to 90%.1 Currently the clinical assessment of dysfunctional breathing is problematic and there is controversy about the role of hypocapnia and the proposed relationship between symptoms and signs of dysfunctional breathing with CO2 levels.3, 4 Dysfunctional breathing is being implicated in many conditions commonly seen by osteopaths including fibromyalgia and chronic pain2 and work related musculo-skeletal problems.6 In this study we aimed to determine how measurement tools used to predict dysfunctional breathing reflect CO2 levels and how they correlate with each other. Methods Breathing assessment was performed on 120 adults. Assessment include carbon dioxide measurement via capnometry, breath holding time according to the Buteyko Method protocol, a manual assessment of respiratory motion (MARM), Nijmegen Questionnaire, self-assessment of breathing questionnaire, and Heart Rate Variability coherence with respiration. Various anthropometrical, health outcome and emotional status evaluations were also performed. Results Preliminary results indicate that none of the measures of dysfunctional breathing correlate significantly with CO2 levels. Claims that breath holding time could accurately predict PCO2 were not supported. D.B. measures that did show a correlation with each other include respiratory motion balance as tested by MARM and ability to achieve high levels of coherence between respiration and heart rate variability. The self-evaluation of breathing questionnaire showed good correlation with the validated Nijmegen Questionnaire in scores for breathlessness, breathing restriction and breathing pattern disturbance. Conclusions Signs and symptoms of dysfunctional breathing appear to exist even when PCO2 levels appear normal. Breathing may reflect the function of many systems of the body and a purely biochemical view of breathing dysfunction may be limited. For a complete picture of patients' breathing it is necessary to evaluate the biomechanical aspects of breathing pattern and symptom patterns in addition to the assessment of carbon dioxide.


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