It was the Argus yes. but if you look at how quickly it went up and then came down again, and the duration it was up for, makes me think its a spike
plus I’ve never gotten close to it again
What would be the difference between the two graphs? The top vs. the bottom one.
Edit: I have figured it out myself by chance. The raw graph is the unfiltered datastream and the other one is the “filtered” one so to say. Sometimes Intervals filters out power spikes for example (just happened) and you can make the underlying data visible via the raw graphs. Interesting.
What is this good for? To see if you need to adapt FTP or max HR e.g.? When you have to much spikes, it might not by artefacts but actual valuable data?