246 – R-R Interval Processing with the BIOPAC HRV Algorithm

AcqKnowledge calculates heart rate variability (HRV) using the Welch Periodogram and least squares de-trending methods.

To properly select the parameter values needed for the calculation of the Power Spectral Density, which is the “work-horse” tool for Heart Rate Variability analysis, a brief tutorial is presented, including an R-R Interval Processing Approach.

The Welch Periodogram is a method by which a large time-sampled waveform can be frequency-transformed by partitioning the data into shorter segments, transforming each segment, then, averaging the results over all the segments to create a composite frequency space waveform.

• Download HRV test case (AcqKnowledge file)

See also:

233 – Heart Rate Variability – Preparing Data for Analysis

129 – Heart Rate Variability: Statistical & Geometric Measures

Associated Applications

• ECG: Cardiology - Connect up to 16 ECG input leads with MP160 system. Use automated analysis features for HRV, RSA, to classify heartbeats, identify arrhythmias, and perform ECG averaging.