{"title":"Disordered tidal breathing pattern and dyspnoea related disability in Parkinson's disease: A case controlled study","authors":"Laura McMahon, Catherine Blake, Olive Lennon","doi":"10.1016/j.resp.2025.104472","DOIUrl":null,"url":null,"abstract":"<div><h3>Background</h3><div>Respiratory dysfunction is a recognised but underexplored feature of Parkinson’s Disease. Understanding underlying mechanisms and their possible impact on breathing patterns is crucial to endeavours to improve respiratory morbidity and mortality associated with Parkinson’s Disease.</div></div><div><h3>Objective</h3><div>This study explored perceived dyspnoea and resting tidal breathing patterns in Parkinson’s Disease compared to healthy controls.</div></div><div><h3>Methods</h3><div>Nineteen Parkinson’s Disease participants and 19 age and gender matched controls were recruited. Respiratory assessment included the modified Borg dyspnoea scale, modified Medical Research Council dyspnoea scale, and respiratory inductance plethysmography to measure inspiratory time, expiratory time, total cycle time, respiratory rate, I:E ratio, and thoracic excursion during tidal breathing.</div></div><div><h3>Results</h3><div>Parkinson’s Disease participants (Hoehn and Yahr stages 1–3; 10 men; 9 women, mean age 65 +/-8years; mean MDS-UPRRS 44.05 +/-18.9) reported significantly greater respiratory disability (modified Medical Research Council) compared to controls (p = 0.005). Dyspnoea rating (modified Borg dyspnoea scale) and disability was significantly greater in the Tremor Dominant group (p < 0.01). Notably, linear mixed models analysing change in breath regularity over time, identified a higher I:E ratio (p = 0.03) and ratio of inspiration to total cycle time (Ti/Ttot) in Parkinson’s Disease participants (p = 0.04), indicating an altered tidal breathing pattern. Thoracic excursion was lower in Parkinson’s Disease participants although differences were non-significant.</div></div><div><h3>Conclusion</h3><div>Individuals with Parkinson’s Disease experience functional disability related to dyspnoea and altered breathing patterns compared to controls. Further research is warranted with larger numbers to explore these findings across Parkinson’s Disease stages and motor subtypes to develop strategies to improve respiratory health in Parkinson’s Disease.</div></div>","PeriodicalId":20961,"journal":{"name":"Respiratory Physiology & Neurobiology","volume":"337 ","pages":"Article 104472"},"PeriodicalIF":1.6000,"publicationDate":"2025-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Respiratory Physiology & Neurobiology","FirstCategoryId":"3","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1569904825000837","RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"PHYSIOLOGY","Score":null,"Total":0}
引用次数: 0
Abstract
Background
Respiratory dysfunction is a recognised but underexplored feature of Parkinson’s Disease. Understanding underlying mechanisms and their possible impact on breathing patterns is crucial to endeavours to improve respiratory morbidity and mortality associated with Parkinson’s Disease.
Objective
This study explored perceived dyspnoea and resting tidal breathing patterns in Parkinson’s Disease compared to healthy controls.
Methods
Nineteen Parkinson’s Disease participants and 19 age and gender matched controls were recruited. Respiratory assessment included the modified Borg dyspnoea scale, modified Medical Research Council dyspnoea scale, and respiratory inductance plethysmography to measure inspiratory time, expiratory time, total cycle time, respiratory rate, I:E ratio, and thoracic excursion during tidal breathing.
Results
Parkinson’s Disease participants (Hoehn and Yahr stages 1–3; 10 men; 9 women, mean age 65 +/-8years; mean MDS-UPRRS 44.05 +/-18.9) reported significantly greater respiratory disability (modified Medical Research Council) compared to controls (p = 0.005). Dyspnoea rating (modified Borg dyspnoea scale) and disability was significantly greater in the Tremor Dominant group (p < 0.01). Notably, linear mixed models analysing change in breath regularity over time, identified a higher I:E ratio (p = 0.03) and ratio of inspiration to total cycle time (Ti/Ttot) in Parkinson’s Disease participants (p = 0.04), indicating an altered tidal breathing pattern. Thoracic excursion was lower in Parkinson’s Disease participants although differences were non-significant.
Conclusion
Individuals with Parkinson’s Disease experience functional disability related to dyspnoea and altered breathing patterns compared to controls. Further research is warranted with larger numbers to explore these findings across Parkinson’s Disease stages and motor subtypes to develop strategies to improve respiratory health in Parkinson’s Disease.
期刊介绍:
Respiratory Physiology & Neurobiology (RESPNB) publishes original articles and invited reviews concerning physiology and pathophysiology of respiration in its broadest sense.
Although a special focus is on topics in neurobiology, high quality papers in respiratory molecular and cellular biology are also welcome, as are high-quality papers in traditional areas, such as:
-Mechanics of breathing-
Gas exchange and acid-base balance-
Respiration at rest and exercise-
Respiration in unusual conditions, like high or low pressure or changes of temperature, low ambient oxygen-
Embryonic and adult respiration-
Comparative respiratory physiology.
Papers on clinical aspects, original methods, as well as theoretical papers are also considered as long as they foster the understanding of respiratory physiology and pathophysiology.