In Dataquest ART, the Segment Duration (which translates into the 'logging interval' in Ponemah) is normally set before collecting the data:

However, if the data was collected with a 10-second segment duration, it is still possible to shorten it in Analysis.

You won't be able to modify the segment duration when loading parameters. Everything will be greyed out:

In order to shorten the segment duration, when loading the waveform:

You have to go to the Segment tab and change the Segment duration to 5 seconds, for example:

This will load the data in segments of 5 seconds :

Then right click the pressure channel and select Mark waveforms:

Then right click the marked waveform and select Extract.

This will extract : dPdt, diastolic pressure, systolic pressure, mean pressure, and IBI for each cycle within each segment:

Finally, select all extracted parameters, right click and select Generate Statistics Series:

This will generate 5-second averages:

Note that the average Heart rate can be computed from the average IBI (see attached file).

HR _average = 60 / IBI _average