STUDY ON SO-CALLED RESPIRATORY RESISTANCE (3Hz RESPIRATORY RESISTANCE), AS MEASURED WITH THE RESPIRATORY RESISTANCE METER MODEL MZR-4000
نویسندگان
چکیده
منابع مشابه
The Response to Respiratory Resistance
1. A study has been made of the effects of resistance to respiration in the inspiratory and expiratory phases. 2. Resistance to inspiration caused an increase in respiratory rate, a decrease in tidal air, and in most instances a severe limitation of the minute volume of pulmonary ventilation. Anoxemia and acidosis accompanied these changes. 3. When resistance was removed the respiratory rate co...
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The airflow perturbation device (APD) is an instrument for the measurement of respiratory resistance. The APD is small, lightweight, fast and requires no special breathing manoeuvres. Airflow perturbation determines resistance by superimposing a periodic signal onto spontaneous breathing with a variable resistance device. Respiratory impedance is the ratio of magnitude of pressure perturbation ...
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OBJECTIVES To determine, in North American children, reference values for respiratory resistance measurements by the forced oscillation (Rfo) technique and to examine whether sitting height, as index of truncal length, is a better determinant of resistance, less influenced by race and gender, than standing height. DESIGN/SETTING A prospective cross-sectional study of healthy nonobese children...
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To assess the effects of obesity on pulmonary function, 46 healthy subjects exhibiting various degrees of obesity underwent lung function tests. Subjects were divided into three groups according to body mass index (BMI): 13 had minimal obesity (BMI, 25 to 29 kg/m2, group 1); 24 had a BMI in the 30 to 40 range (group 2); and 9 displayed to morbid obesity (BMI > 40, group 3). Respiratory resistan...
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Mandibular advancing devices are proposed as nonsurgical treatment for certain patients with an obstructive sleep apnoea syndrome. Since they act by increasing the upper airway calibre, the aim of the present study was to investigate the changes in respiratory resistance (Rrs) resulting from mandibular advancement. Rrs was measured at the nose by the forced oscillation technique (4-32 Hz). Ten ...
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ژورنال
عنوان ژورنال: The KITAKANTO Medical Journal
سال: 1976
ISSN: 0023-1908,1883-6135
DOI: 10.2974/kmj1951.26.323