Results 21 to 30 of about 11,564,321 (250)
Intrasubject variability of maximal expiratory flow volume curve. [PDF]
Thorax, 1977 Analysis of airflow in the terminal portion of the maximal expiratory flow volume curve has been suggested as a useful test for the early diagnosis of chronic airways obstruction. Whether such an analysis can identify early disease, and whether any subsequent action can prevent the progress of chronic airways obstruction, is unknown and will require ...
G M, Cochrane, F, Prieto, T J, Clark
openaire +2 more sources
Critical Care, 2020 Background The physiological behavior of lungs affected by the acute respiratory distress syndrome (ARDS) differs between inspiration and expiration and presents heterogeneous gravity-dependent distribution.
Gaetano Scaramuzzo +9 more
doaj +1 more source
Respiratory Research, 2023 Background Parameters from maximal expiratory flow-volume curves (MEFVC) have been linked to CT-based parameters of COPD. However, the association between MEFVC shape and phenotypes like emphysema, small airways disease (SAD) and bronchial wall ...
Kenneth Verstraete +11 more
doaj +1 more source
Canadian Respiratory Journal, 2021 Background. This study aimed to evaluate the efficacy of the emphysema index (EI) in distinguishing chronic bronchitis (CB) from chronic obstructive pulmonary disease (COPD) and its role, combined with the COPD Assessment Test (CAT) score, in the ...
Qi Ding +8 more
doaj +1 more source
Artificial neural network identification of exercise expiratory flow-limitation in adults
Scientific Reports, 2023 Identification of ventilatory constraint is a key objective of clinical exercise testing. Expiratory flow-limitation (EFL) is a well-known type of ventilatory constraint. However, EFL is difficult to measure, and commercial metabolic carts do not readily
Hans Christian Haverkamp +3 more
doaj +1 more source
Thoracic gas compression during forced expiration is greater in men than women
Physiological Reports, 2020 Intrapleural pressure during a forced vital capacity (VC) maneuver is often in excess of that required to generate maximal expiratory airflow.
Elizabeth A. Gideon +7 more
doaj +1 more source
BMC Pulmonary Medicine, 2021 Background Methacholine challenge tests (MCTs) are used to diagnose airway hyperresponsiveness (AHR) in patients with suspected asthma where previous diagnostic testing has been inconclusive.
Michael Peled +6 more
doaj +1 more source
Characterising the influence of pre-drive lung volume on force and power production during rowing [PDF]
, 2007 This thesis was submitted for the degree of Master of Philosophy and awarded by Brunel University.Purpose: This study evaluated the effect of lung volume at the catch position to force and power outputs during single maximal effort strokes in rowing ...
Gibbs, Adam
core +7 more sources
Ventilatory Limitation of Exercise in Pediatric Subjects Evaluated for Exertional Dyspnea
Frontiers in Physiology, 2019 Purpose: Attribution of ventilatory limitation to exercise when the ratio of ventilation (V˙E) at peak work to maximum voluntary ventilation (MVV) exceeds 0.80 is problematic in pediatrics. Instead, expiratory flow limitation (EFL) measured by tidal flow-
Paolo T. Pianosi, Joshua R. Smith
doaj +1 more source
Excessive gas exchange impairment during exercise in a subject with a history of bronchopulmonary dysplasia and high altitude pulmonary edema [PDF]
, 2007 A 27-year-old male subject (V(O2 max)), 92% predicted) with a history of bronchopulmonary dysplasia (BPD) and a clinically documented case of high altitude pulmonary edema (HAPE) was examined at rest and during exercise.
Lovering, AT +9 more
core +1 more source