A specialized hardware to monitor the cardiac activity through time is the Holter (used to monitor cardiac activity for 24h). It's an ElectroCardioGraphy (ECG), which unveils arithmias etc.
In this case would be used to monitor the heart beat rate (noting the frequency increase on high adrenaline levels).
This is like a walkman? :-) and you have to pass the registered data to a computer for analysis. I doubt that the amiga has such an interface or software.
Here is a
site with medical related amiga documents (Radiology education using the Amiga computer), and another one about
hardware used for thyroid scintigraphy.
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LAUNCH BOX VAPORIZER