Quote:
Originally Posted by wolfgang  The info talks about HRV (heart rate variance) that is the difference between each heart beat. This difference between beats changes a certain amount - so math people? isn't that just the first derivative? |
If they are talking about the change in heart rate, then, yes, it would be basically the first derivative. And it wouldn't be difficult to build a decent software for displaying it. As you say, all it needs is to get the signal into your PC.