The AcqKnowledge® Full Body Plethysmograph – Penh analysis is part of a suite of three automated respiration routines. The other two are Compliance and Resistance and Pulmonary Air Flow. Each routine provides breath-by-breath analysis, event marking and exporting of the values to excel.
See More...
This is one of many ADVANCED FEATURES for the selected Application. Scroll down for hardware options.Full Body Plethysmography Penh
The Penh analysis measures data from an animal inside a full body plethysmograph. A single channel of airflow signal is recorded from the chamber and used for the analysis. The software looks for the plateau, based on a user defined percentage of exhaled air. When the exhaled air reaches the user threshold the system will look at the plateau that occurs before the animals starts the next breath. The analysis will take the following measures from the data.
| Name | Abbrev. | Description | Units |
|---|---|---|---|
| Cycle | Index of the exhalation cycle in the data, beginning at 1. | ||
| Time | Starting time of the exhale for the cycle. This is the location of the Exhale Start event. | Seconds | |
| Peak inspiratory flow | PIF | Maximum absolute airflow occurring in the inspiration cycle immediately preceding the exhalation cycle. This measure is recorded as an interval, so its value is always positive. | Airflow channel units |
| Peak expiratory flow | PEF | Maximum airflow during the exhalation cycle being examined. | Airflow channel units |
| Exhalation time | Te | Total time elapsed between the start of the exhalation cycle and the end. This is the time interval between the Exhale Start and following Inhale Start events. | Seconds |
| Relaxation time interval | Rt | Time required for the subject to exhale the specified percentage of the total exhaled air. This is the time interval between the Exhale Start and the subsequent Recovery event. | Seconds |
| Pause | Numerical factor describing the characteristics of the plateau at the end of the expiration cycle. Computed using the formula: (Te/Rt)-1 | ||
| Enhanced pause | Penh | Pause scaled to be relative to the strength of the inhale and exhale. This helps take breathing variability into account. Computed using the following formula: (PEF/PIF)*Pause |
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.
MP36R System
Animal | Full Body Plethysmograph Penh
MP36R with AcqKnowledge plus pneumotach transducer
MP160 System
Animal | Full Body Plethysmograph Penh
MP160 System with AcqKnowledge plus pneumotach heated transducer and differential pressure transducer
MP36R System
MP160 System
MedelOpt® Infinity systems provide high-density NIRS with EEG for very high density whole brain mapping and custom advanced montages with variable depths. The flexible, adaptable headset allows acquisition for up to 8 hours. MedelOpt adjusts to real-world situations or Virtual Reality environments with a specific design to fit any head mounted VR display. Use for research […]
View AllThe autonomic nervous system (ANS) is responsible for regulating the functions of all the body’s organs. Take a look at this month’s citations to see how to apply BIOPAC’s tools and learn techniques for ANS research… Comparable responses to a wide range of olfactory stimulation in women and men. Scientific Reports, 13(1), 9059. Lillqvist, M., Claeson, […]
BIOPAC’s comprehensive 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 for extracting, […]
Read All