Help Finding/Creating a Max Heart Rate Duration Graph?

I’m looking for a way to view my maximum heart rate over different time durations — specifically for 5 seconds, 1 minute, 5 minutes, 20 minutes, and 1 hour. Ideally, I’d like a custom graph that shows this, similar to how the power duration curve works for best efforts.

So far, I haven’t been able to build a graph that allows me to track max heart rate for these time frames. I’ve checked the available dashboards and chart options, but I must be missing something — I can’t seem to find this functionality anywhere.

Has anyone here managed to create something like this or know if this feature is available somewhere in Intervals.icu?

Any help or pointers would be greatly appreciated!

Thanks in advance!

I haven’t tried creating a chart for HR, but I would approach it in a similar way as the max power per duration chart:

Replace power with maxHR, and keep the durations and colours the same:

Thanks for sharing this. Tried this approach but replacing Best Power to MaxHR - doesn’t allow for selection of durations to define the effort.

You’re looking for HR above a certain value for each duration. MaxHR is the max HR for the activity, so it would only show 1 value per activity. I’m not at my computer, and don’t like using my phone for charting. Will have a look sometime over the weekend.

Isn’t the one on the activity HR page giving you what you need? Or am I overlooking something?