BIOPAC® Systems, Inc. Logo

Compliance and Resistance Analysis

The AcqKnowledge® Compliance and Resistance analysis is part of a suite of three automated respiration routines. The other two are Pulmonary Air Flow Analysis and Full Body Plethysmograph Penh. Each routine provides breath-by-breath analysis, event marking and exporting of the values to excel.

Compliance and Resistance

This analysis requires an air flow signal and a pressure signal. The analysis will extract compliance and resistance values along with many common pulmonary values. Pulmonary compliance is calculated using the isovolumetric method. A user specified percentage of the tidal volume is located on both sides of the tidal volume signal. Pulmonary resistance is defined as the difference in pressure divided by flow at these two points.

See More...

Details

This is one of many ADVANCED FEATURES for the selected Application. Scroll down for hardware options.

Dynamic compliance is measured on a breath-by-breath basis by diving tidal volume by change in pressure between the exhale start and inhale start locations of the breath.

Name Abbrev.Description Units
CycleIndex of the breath in the data, beginning at 1.seconds
TimeStarting time of the inhale of the breath.
Peak Inspiratory FlowPIFMaximum absolute flow occurring during the inhale portion of the breath.liters/sec
Peak Expiratory FlowPEFMaximum absolute flow occurring during the exhale portion of the breath.liters/sec
Tidal volumeTVTotal volume of air inhaled during the breath.liters
Minute volumeMVVolume of air that would be inspired during a minute given the tidal volume and breathing rate of this breath. TV * BPMliters/
minute
Breaths per minuteBPMBreathing rate. 60/TTBPM
Inspiration timeITTime interval between the start of inhale and the start of exhale.seconds
Exhalation timeETTime interval between the start of exhale and either:
– start of apnea (if apnea present)
– start of subsequent breath (if no apnea present)
seconds
Total breath timeTTTime interval between the start of inhale and the start of inhale of the following breath. This is the sum of the inhalation time, exhalation time, and apnea time.seconds
Apnea timeATTime after end of exhalation where the airflow signal remained within the apnea threshold defined at the start of the analysis.seconds
Pulmonary resistanceRESChange in pressure divided by change in flow at the isometric volume locations: delta p/ delta fmmHg/
(liters/
sec)
Pulmonary complianceCdynTidal volume divided by the change in pressure between exhale and inhale locations in the breath: tv/delta pliters/
mmHg

Videos

Support

Application Notes

Knowledge Base

Hardware Packages   |   Compliance and Resistance Analysis

Hardware Bundles are complete solutions for the specified application. Choose your preferred platform and bundle, then click "Request Pricing" to request an estimate, add/remove items, or complete purchase. If you have questions about specific items, click through to the product web page for details and specifications, or contact your Local Sales contact.

Wired

Animal

Spotlight On
free BIOPAC webinar

Fundamentals of Physiological Data Recording

Basic principles of physiological data collection covers fundamentals of data collection and equipment configuration equipment to help you refine experiment protocols and avoid costly missteps. Frazer Findlay, CEO of BIOPAC, discusses common mistakes with physiology recording and shares his secrets for collecting great data. Topics include: How to prep a subject and where to place electrodes; Which type of electrodes work for different body signals; Analog to Digital Conversion; Sample rates (correct vs. incorrect); Filtering; and Scaling and calibration.
Watch On Demand Now!

Register Now
Latest News

New Citations | Do We Really Trust Autonomous Vehicles?

A System to Measure Physiological Response During Social Interaction in VR Children with Autism Spectrum Disorder (ASD) have a difficult experience in responding to social cues and actions. This pilot study measured the effectiveness of Virtual Reality in creating a social environment for children, measured with a BIOPAC MP Series data acquisition system and Worldviz […]

Electrocardiography Guide Now Available

BIOPAC’s just released Introductory ECG Guide addresses fundamental to advanced concerns to optimize electrocardiography data recording and analysis. Topics include: ECG Complex; Electrical and Mechanical Sequence of a Heartbeat; Systole and Diastole; Configurations for Lead I, Lead II, Lead III, 6-lead ECG, 12-lead ECG, precordial leads; Ventricular Late Potentials (VLPs); ECG Measurement Tools; Automated Analysis Routines […]

Read All
Request a Demonstration
Request a Demonstration