Sorry if this has already been asked, I couldn’t find it through search.
I know it’s possible to create custom fields, but I’d like to know how you would approach this. I’m trying to replicate what I currently do in Google Sheets to track my lactate tests: basically a few fields and a custom graph within the activity view.
You could do that with interval fields. Split your activity into these 5min intervals. Avg. W and max. HR are built in fields. You just have to create an interval field for entering your lactate value for each lap/split.
I think it should even be possible to create charts from interval fields.