Heart Rate Variability (HRV) Add-On Module to LabChart 8

The MLS310/8 Heart Rate Variability (HRV) Module Version 8 for Windows and MAC provides a comprehensive set of tools for the analysis and display of variation in the interval between heartbeats in human and animal electrocardiogram recordings. Electrocardiograms or other heartbeat-related signals can be recorded using the PowerLab data acquisition system and changes in the heart rate can be computed on-line using the analysis features of LabChart software. With the addition of the HRV Module, the analysis of the variability in this data is possible. The Heart Rate Variability (HRV) Module should be used with the latest version of LabChart.

Features

• Define artifact/ectopic interval classification limits

• Exclude or include ectopic beats from analysis

• Add R waves

• Delete R waves which have incorrectly created short artifacts

• Adjust histogram bin size

• Generate ECG data with specified RR interval variation (Mac only)

From the classified RR intervals a range of HRV plots, spectral measurements, statistical histograms and reports are calculated and displayed. These include:

• Poincaré Plot

• Period Histogram

• Delta NN Histogram

• Tachogram

• Spectrum

• Statistical report

Poincaré Plot

Each RR interval is plotted, against its preceding RR interval, in a scatter plot with the mean (central point) and standard deviation (ellipse) are displayed in the window. The window also displays the RR interval classification boxes (blue for the normal/ectopic limit, red for the ectopic/artifact limit). These limits can be adjusted by dragging the boxes.

Spectrum Window

The Spectrum Window displays the power spectrum of time-based Tachogram, also referred to as the 'Spectrum of Intervals'. Draggable vertical lines indicate limits of LF and HF regions of the spectrum.

Available as Part of LabChart Pro

The Heart Rate Variability Module is also available as part of LabChart Pro. Visit the LabChart Pro information page prior to making a purchasing decision. Existing LabChart users and PowerLab system purchasers can upgrade to LabChart Pro at a special price.