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

Evoked Potentials Part II: Event-related or Endogenous Evoked Potentials (ERP)

Learn how to record event-related or endogenous evoked potentials (ERP).

You will learn about:
– Introduction to ERPs
– Theory and guidelines for recording ERPs
– How to record great ERPs data
– Wired and wireless wearable EEG-fNIRS bimodal response to oddball paradigm
– How to mismatch negativity in a virtual world
– How to prepare data for analysis
– Workflow Automation Tools

On Demand Playback

Register Now
Latest News

New Citations | BIOPAC in Psychophysiology Research

The mind and body work together in many ways and psychophysiology research provides insight to these connections. BIOPAC has a variety of systems to power your emotion, arousal, stress, cognitive assessment, group interaction, startle, and other psychophysiology research. Here are some recent studies that have used BIOPAC systems for psychophysiological research… Skin conductance, facial EMG, […]

Seenel Imaging and BIOPAC Systems, Inc. Announce a Global Partnership

           For immediate release: January 4, 2023 Amiens, France and GOLETA, California, USA Seenel Imaging SAS and BIOPAC Systems, Inc. have formed a long-term global partnership to distribute MedelOpt®, Seenel Imaging’s groundbreaking wearable neuroimaging device for the neuroscience research market. Seenel Imaging, based in France, continues its international expansion by partnering with BIOPAC Systems, […]

Read All
Request a Demonstration
Request a Demonstration