... twitches respectively); and (v) the corresponding pharyngeal and total airway resistance values. In addition, the P d – V ̇ I relationship of flow value ranging from 0 to V ̇ Imin was characterized using a polynomial regression model, V ̇ I = k 1 P d + k 2 P d 2 , as described previously [ 24...

... words: airway resistance, continuous positive airway pressure, inspiratory flow limitation, obstructive sleep apnoea. Correspondence: Professor Ramon Farre´ (e-mail [email protected]). ing the magnitude of flow limitation is difficult, because the conventional concept of airflow resistance (or its...

... stimulus in asthmatic patients. This infer- ence is drawn from the very many studies which have demonstrated a fall in maximum expiratory flow rate or an increase in airway resistance after exercise. There are very few studies in Which measurements of airway resistance have been made during exercise...

... 30 min before, the start of exercise. 2. With no medication, transpulmonary index (TPI), a measure of airway resistance, fell linearly during exercise from a resting value of 0.269 ± 0.024 to 0.170 ± 0.014 kPa·1 −1 ·s by the end of exercise. This returned to baseline between 2 and 4 min after...

... Research Society 1994 adrenergic resistance airway resistance salbutamol ClinicalScience (1982) 63,513-517 513 The effect of regular inhaled salbutamol on the airway responsiveness of normal subjects C . M . B. H I G G S , R . B. R I C H A R D S O N * A N D G. L A S Z L O Respiratory Department...

..., both affecting both large and small airways, and produce similar degrees of bronchodilatation. This is supported by our results after the helium/oxygen breathing, where the lack of change in density dependence of maximal flow suggests that there was no change in the distribution of airways resistance...

... in the ease with which they develop resistance to β-adrenoceptor agonists. Asthmatic airways appear to be relatively protected from developing resistance when compared with other tissues in asthmatic patients and when compared with the airways of normal subjects. adrenergic resistance airway resistance...

... The Biochemical Society and the Medical Research Society 1980 adrenergic resistance airway resistance asthma salbutamol Clinical Science (1980) 59,155-161 155 Airway and metabolic resistance to intravenous salbutamol: a study in normal man S . T . H O L G A T E , W. A. STUBBS*, P. J . W O O D , E. S...

...T. Higenbottam; T. J. H. Clark 1. Airway resistance was measured close to functional residual capacity before and after a full inhalation of total lung capacity, as well as before and after a full exhalation to residual volume. 2. The effects of these volume manoeuvres upon airway resistance...

...T. Higenbottam; T. J. H. Clark 1. The inverse relationship between airway resistance and lung volume contributes to variation in measurement of resistance, as it is difficult to control precisely the lung volume at which resistance is determined each time. A correction for variation in lung volume...