AcqKnowledge® includes a series of automated Heart Rate Variability (HRV) analysis tools that conform to international cardiology standards. It is possible to perform the analysis over user-defined selections of data, or automatically within user-specified time periods, or between stimulus presentation event marks, or user entered event marks. The user can also create focus areas in real time or post-acquisition and the software will analyze the data within areas.
Options for:
Single-epoch HRV–Spectral
Single-epoch HRV is the examination of a user defined area of data.
Multi-epoch HRV–Statistical
This analysis computes statistical measures of heart rate variability in user-specified time intervals These measures (RMSSD, SDSD, and pNN50) can be extracted by fixed time intervals, time between event boundaries or focus areas.
Multi-epoch HRV and RSA–Spectral
This routine performs RSA and HRV analyses on specified time slices along an ECG waveform, whether by markers, fixed-time intervals, or focus areas.
R-R Poincare Plot
Poincare plots are constructed from ECG Lead II data. A Poincare plot is an X/Y plot with R-R intervals in seconds on one axis and on the other axis the sequence delayed by one beat (RR vs. RR+1).
RSA–Time-series
This particular method looks at the time domain data and uses the peak and valley method to compute Respirator Sinus Arrhythmia. It is used to explore the connection between respiration and changes to heart rate. Variations in the heart rate can be directly correlated with vagal tone. The RSA index can be used to investigate changes in this connection during recording.
Learn more in the HRV Webinar Series: Part 1 Time Domain Measures, Part II Frequency Domain Measures.
See More...AcqKnowledge® research software includes a fully-automated Heart Rate Variability analysis tool. The algorithm conforms to the frequency domain algorithm guidelines as published by the European Heart Journal. These are the formulas AcqKnowledge uses to calculate HRV statistical measures (RMSSD, pNN50, and SDSD):
For optimal results, follow these suggestions for Preparing HRV Data for Analysis. For additional reference, see Shaffer, F., & Ginsberg, J. P. (2017). An Overview of Heart Rate Variability Metrics and Norms. Frontiers in public health, 5, 258. https://doi.org/10.3389/fpubh.2017.00258.
AcqKnowledge also inlcudes a Poincare plot option that will display either selected areas of the data, or the entire file. The Poincare plot is an X/Y plot of the RR intervals in seconds. One axis displays the RR interval and the other axis displays the interval delayed by one beat.
Note: The BioHarness is not recommended for heart rate variability studies because the sample rate used to record the ECG waveform is at the very low end of the optimal range for HRV studies.
On Demand Webinar: HRV & RSA – FUNDAMENTAL ANALYSIS TECHNIQUES
Fundamental techniques for analyzing Heart Rate Variability and Respiratory Sinus Arrhythmia data with AcqKnowledge software.
Recording Good Quality ECG for HRV
HRV Analysis: Fully-automated Routine in AcqKnowledge
RSA Analysis
Epoch Analysis Demonstration
BIOPAC Research Solutions | ECG
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MP36R System
Wired | Heart Rate Variability (HRV) Analysis Software
MP36R with AcqKnowledge plus lead set & disposable electrodes
MP36R System
Wired | Heart Rate Variability (HRV) Analysis Software
MP36R with AcqKnowledge plus electrode lead adapter and disposable foam electrodes
MP160 System
Wired | Heart Rate Variability (HRV) Analysis Software
MP160 plus AcqKnowledge with ECG amp, module extension cable and foam electrodes
MP36R System
Wired | Heart Rate Variability (HRV) Analysis Software
MP36R System plus respiratory effort transducer, shielded lead set, and disposable foam electrodes
MP160 System
Wired | Heart Rate Variability (HRV) Analysis Software
MP160 with AcqKnowledge plus ECG, EEG, EMG, EOG, Oxygen Consumption, Respiration & Skin Temp setups
MP36R System
MP36R System
MP160 System
MP36R System
MP160 System
MP160 System
Wireless | Heart Rate Variability (HRV) Analysis Software
MP160 System with AcqKnowledge plus BioNomadix wireless ECG amp and disposable foam electrode
BioNomadix Logger
Wireless | Heart Rate Variability (HRV) Analysis Software
BioNomadix Logger and one transmitter for wireless ECG, 15 cm leads & disposable foam electrodes, plus Impedance Checker
MP160 System
BioNomadix Logger
MP160 System
MRI | Heart Rate Variability (HRV) Analysis Software
MP160 plus AcqKnowledge with ECG MRI amp, MRI cable/filter system to biopotential amps and disposable radiotranslucent electrodes
MP160 System
MRI | Heart Rate Variability (HRV) Analysis Software
MP160 plus AcqKnowledge with ECG MRI amp, MRI cable/filter system to biopotential amps, disposable radiotranslucent electrodes and electrode gel
MP160 System
MP160 System
MP36R System
Animal | Heart Rate Variability (HRV) Analysis Software
MP36R with AcqKnowledge plus electrode lead adapter and three 12 mm TP unipolar needle electrodes
Stellar
Animal | Heart Rate Variability (HRV) Analysis Software
Schedule, Record, and Analyze Stellar Telemetry Data with AcqKnowledge
MP160 System
Animal | Heart Rate Variability (HRV) Analysis Software
MP160 with AcqKnowledge plus ECG amp & needle electrodes
MP36R System
Stellar
MP160 System
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