Resistance Measured by Airflow Perturbation Compared with Standard Pulmonary Function Measures
نویسندگان
چکیده
منابع مشابه
Resistance Measured by Airflow Perturbation Compared with Standard Pulmonary Function Measures
Background: Routine lung function testing requires expensive equipment, or requires maximum expiratory effort. The airflow perturbation device (APD) is a light handheld device, allowing for serial measures of respiratory resistance noninvasively and effortlessly. Methods: In a convenience sample of 398 patients undergoing pulmonary function testing, we compared routine spirometric indices (forc...
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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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BACKGROUND Nasal strips are used by athletes, people who snore, and asthmatics to ease the burden of breathing. Although there are some published studies that demonstrate higher flow with nasal strips, none had directly measured the effect of the strips on nasal resistance using the airflow perturbation device (APD). The APD is an inexpensive instrument that can measure respiratory resistance b...
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ژورنال
عنوان ژورنال: Open Journal of Respiratory Diseases
سال: 2013
ISSN: 2163-940X,2163-9418
DOI: 10.4236/ojrd.2013.32010