Dynamic hyperinflation during exercise
WebApr 1, 2024 · Gagnon P, Guenette JA, Langer D, Laviolette L, Mainguy V, Maltais F, Ribeiro F, Saey D. Pathogenesis of hyperinflation in chronic obstructive pulmonary disease. Int J Chron Obstruct Pulmon Dis. 2014 Feb 15;9:187-201. doi: 10.2147/COPD.S38934. eCollection 2014.
Dynamic hyperinflation during exercise
Did you know?
WebBronchodilators lessen airway smooth muscle tone and reduce dynamic hyperinflation, to cause relatively rapid relief of symptoms and improved exercise tolerance [74–76]. … WebNov 1, 2024 · Dynamic hyperinflation was not observed during both exercise intensities. • Rib cage distortion seemed not to be a limiting factor of the exercise capacity. • Rib cage distortion was observed even in the absence of …
WebThe term dynamic hyperinflation (DH) refers to the increase in end-expiratory lung volume (EELV) that may occur in patients with airflow limitation when minute ventilation increases (e.g. during exercise, … WebDec 1, 2011 · In our study, we had a further evidence of the effect of dynamic hyperinflation on left ventricle stroke volume. Indeed and most important, we found that DP reserve was inversely related to the dynamic hyperinflation during exercise. In addition, heavy hyperinflators had a high likelihood to have a DP reserve value ≤ 10,000 mmHg · …
WebVentilation during exercise was limited by mechanical constraints on V t expansion in both R and NR, that is, by dynamic hyperinflation from below and by the TLC envelope mentioned earlier here. As the EILV approaches TLC, we refer to the upper volume boundary as the “minimal inspiratory reserve volume” that can be achieved at the peak of ... WebDynamic hyperinflation (DH) during exercise occurs in most but not all patients with advanced chronic obstructive pulmonary disease (COPD). It is not known whether the presence or absence of DH has implications …
WebFeb 1, 2024 · BACKGROUND: Dynamic hyperinflation is a major cause of dyspnea in patients with COPD. Dynamic hyperinflation is usually measured with cardiopulmonary exercise testing, but this test requires maximal effort from the patient, and inspiratory capacity (IC) measurements may influence test results. This study investigated another …
WebThe contention that dynamic hyperinflation contributes importantly to exercise limitation in chronic obstructive pulmonary disease has been bolstered by studies that have shown … pom in materialWebOct 1, 2024 · In COPD, dynamic hyperinflation can be reduced during exercise by interventions that either increase expiratory flow (bronchodilators or a mixture of helium and oxygen), increase the time … shannon rowellWebDynamic hyperinflation occurs when expiratory flow has not emptied alveoli to their resting FRC values by the end of exhalation. The residual positive pressure within the lungs … shannon rose ramsey entertainmentWebNov 30, 2012 · Dynamic hyperinflation has important clinical consequences in patients with chronic obstructive pulmonary disease (COPD). Given that most of these patients have respiratory and peripheral muscle weakness, dyspnea and functional exercise capacity may improve as a result of inspiratory muscle training (IMT). shannon rowlandWebSep 14, 2024 · Obese individuals and patients with asthma can develop dynamic hyperinflation (DH) during exercise; however, no previous study has investigated DH … shannon rowenWebIn COPD, expiratory flow limitation in the setting of exercise hyperpnea is associated with dynamic lung hyperinflation at higher exercise intensities (O'Donnell et al., 2024).In such patients with slow mechanical time-constant for lung emptying, dynamic hyperinflation is influenced by the prevailing breathing pattern as expiratory time decreases and/or V T … pom injection moldingWebAug 22, 2005 · Acute dynamic lung hyperinflation, which refers to the temporary increase in operating lung volumes above their resting value, is a key mechanistic consequence of expiratory flow limitation, and has serious mechanical and sensory repercussions. pomino tuscany flooring