a significant reduction in arterial blood oxygen saturation during fiberoptic bronchoscopy has been proved but it is not yet known whether all patients need supplemental oxygen during this procedure. the aim of study is to examine the relationship between peak expiratory flow rate (pefr) before bronchoscopy and oxygen desaturation during bronchoscopy. measurement of pefr (% predicted) performed...

Purpose: To investigate the association of standard measures of frailty to visual acuity and contrast sensitivity. Methods: Time to walk a measured course, handgrip strength, peak expiratory flow rate, ability to stand from a sitting position without using arms, best-corrected visual acuity, and contrast sensitivity were assessed at the third examination (1998-2000) of the Beaver Dam Eye Study....

It has been suggested that the use of a cumulative technique to obtain bronchodilator dose-response curves will cause a greater response than a non-cumulative technique, because sequential doses of drug will penetrate further into the lung. To test this hypothesis we have compared cumulative and non-cumulative dose-response curves for inhaled isoprenaline in 10 subjects with stable asthma, meas...

Peak expiratory flow rate (PEFR), an important test to assess overall lung function, was determined in 84 male adolescent subjects, out of which there were 46 and 38 nonswimmers (NS). Their ages varied between 9 to 15 years. It was observed that a significant spurt in PEFR value occurs in S at the age of 12 years. A similar spurt in growth (height & weight) in S, not so apparent in NS, was also...

The physiological mechanisms by which vibration and other physiotherapy interventions may clear secretions in subjects with cystic fibrosis are unknown. The main aim of this study was to compare the expiratory flow rates and frequencies of airflow oscillation of vibration to those of Acapella(R), Flutter(R), positive expiratory pressure and percussion. Respiratory flow rates were measured durin...