Introduction to a new inspiratory threshold loading device
نویسندگان
چکیده
منابع مشابه
Introduction to a new inspiratory threshold loading device.
Inspiratory threshold loading is an important tool in assessing inspiratory muscle function and has been widely used in studies of respiratory mechanics. A simple system was designed to provide a pure and precise inspiratory threshold load. The inspiratory threshold loading system comprises a flow generator attached via a pressure chamber, to the inspiratory port of a Hans-Rudolph valve. By lim...
متن کاملA threshold loading device for testing of inspiratory muscle performance.
Threshold loading is a method of incrementally loading the inspiratory muscles, which requires development of an adjustable threshold pressure (Pth) before air will flow. In the ideal device, flow is independent of pressure once Pth is exceeded. A "weighted plunger" apparatus is commonly used, but devices described previously perform unreliably at high inspiratory load. We have modified this ap...
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In humans, inspiratory constraints engage cortical networks involving the supplementary motor area. Functional magnetic resonance imaging (fMRI) shows that the spread and intensity of the corresponding respiratory-related cortical activation dramatically decrease when a discrete load becomes sustained. This has been interpreted as reflecting motor cortical reorganization and automatisation, but...
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متن کاملMeasurement of inspiratory muscle performance with incremental threshold loading: a comparison of two techniques.
BACKGROUND Incremental threshold loading (ITL) is a test of inspiratory muscle performance which is usually performed by breathing through a weighted inspiratory plunger, the load on the inspiratory muscles being increased by externally adding weights to the intake valve. This is not a true threshold device and may be inaccurate. This method was compared with a true threshold device consisting ...
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ژورنال
عنوان ژورنال: European Respiratory Journal
سال: 1998
ISSN: 0000-0000,0903-1936
DOI: 10.1183/09031936.98.12010208