What is the difference between Rolling Average HRV and HRV?

The Rolling Average HRV displays the average HRV over set duration intervals throughout a measurement while the HRV displays the heart rate variability, scaled ln(rMSSD), for each point and all previous points of the measurement.

For example, if the Rolling Average HRV is displayed on the chart, and the rolling average duration is set to 30 seconds, then a 30 second rolling average of heart rate variability will be charted on the graph. This means that at 30 seconds the HRV will be calculated/displayed for the time period 1 – 30 seconds and at 45 seconds the HRV will be calculated/displayed for the time period 15-45 seconds. Rolling Average HRV is more useful when analyzing longer measurements with more fluctuation in HRV over the measurement.

By contrast, the HRV chart will show the calculated HRV at each point during a measurement that looks at that point and all previous points in the measurement. For example, at 30 seconds the HRV would be calculated/displayed for the the time period 1 – 30 seconds and at 45 seconds the HRV would be calculated/displayed for the time period 1 – 45 seconds and so on until the end of the reading. The last HRV data point on the chart is the same as the HRV value for the measurement as it shows the final heart rate variability of the entire reading.

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