European Respiratory Society

Figure 4

Fri, 2021-07-09 17:40 -- admin
Summary: 
Changes in operating lung volumes as ventilation increases with exercise in a) chronic obstructive pulmonary disease (COPD); and b) age-matched healthy subjects. End-expiratory lung volume (EELV) increases above the relaxation volume of the respiratory system (Vr) in COPD, as reflected by a decrease in inspiratory capacity (IC), whereas EELV in health either remains unchanged or decreases. Restrictive constraints on tidal volume (VT) expansion (╦) during exercise are significantly greater in the COPD group from both below (increased EELV) and above (reduced inspiratory reserve volume (IRV) as end-inspiratory lung volume (EILV) approaches total lung capacity (TLC)). ERV: expiratory reserve volume; RV: residual volume; VC: vital capacity; % pred: % predicted. Adapted from [29] with permission.
Type: 
Figure
Sub Component: 
Normal
Slug: 
F32
Highwire: Type: 
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HighWire: Journal/Corpus Code: 
ersbk
Highwire: pisa_id: 
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Highwire: pisa_master: 
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/ersbk/9781904097808/9781904097808/SEC5/F32.atom
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Image - Large: 
Highwire: cpathalias: 
/content/ersbk/9781904097808/9781904097808/SEC5/F32
Image - Medium: 
Image - Small: 
Highwire: Variants: 
expansion
Highwire: State: 
Released
Contributors: 
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