@davidtinker - I’m on a recovery week so the last couple of workouts have been Whorl and Collins. When I look at them in intervals.icu it states that “no intervals detected”. Previously workouts like Pettit did display intervals. Has something changed?
Thanks David.
My Notes are all ones brought over from TR’s Calendar. Easiest option for me in order to tidy things up is probably just to disable “Show notes” under Options on the Fitness page…
@davidtinker hi david,
is there a way to show the actual FTP instead of eFTP in this view:
I know I can enable it for the line chart but that view is not really useful in my opinion. FTP changes in the notes would be a nice touch too. Just like in TR. What do you think?
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I will add an option for that, its now on the todo list. I went with eFTP there because so long as you do a max effort long enough every few weeks its an automated measure of progress.
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I haven’t changed anything recently. The interval detection is all relative to your FTP. There are heuristics that toss out “intervals” that are too short for the intensity. If you msg me a link to one of your activities that is missing intervals I can have a look. You can also just manually add some (click on chart and press A where you want it to appear, then drag the edges as needed).
FWIW I hope you don’t go crazy adding metrics that can’t be hidden or switched on/off.
The only thing I really miss about TP is how clean the charts are on the mobile app. I know people love to nerd out on data, but so much of it is of minimal practical use and just extra noise.
Maybe a feature that requires you to move up the AG rankings to “unlock” more specific metrics??? 
Obviously just kidding. Keep up the good work David.
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Ok, maybe I’m confused about this. But is it possible to build a power-duration curve that only take true intervals of each duration into account, not average power over that duration? For example, I noticed I did some 15/15s, and it brought my 5min power up in the curve for the last 42 days. I never did a 5min effort in that workout (side note - I think I need to do some 5mins, hah!). I think intervals.icu might be the only site that can build such a curve, because you need to be able to detect intervals in the first place.
Sorry if I missed something obvious but what notes it refers to? In chain TR → Strava → intervals.icu there are 3 places for notes. Tried to enter something to each of them, still rectangless. “Show Notes” setting is turned on.
The notes are calendar entries with category “Note” on the intervals.icu calendar. Imported external calendars (e.g. from TR) also create notes and you can edit these to change the colour, hide them from the fitness chart etc…
You can create notes by clicking the “Add calendar entry” icon on the calendar view or the fitness page or by clicking in an empty area of a date on the calendar view.
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Understood, thank you 
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That could be done but thats not normally how the power duration curve works. So it might a bit confusing.
Yes, agreed. It’s definitively something that should only be an option. To be honest if I could do that, it’s something I would build for myself and then decide if it’s different and useful, lol. There might not be a big difference if you actually have max power datapoints for different durations in your curve. I just think that with average power, you can boost your curve by throwing in short sprints etc, and you might think you have good 5 min power for example, when you really don’t know. I can’t quite decide, I’m already confused!
I have a question about negative heart rate decoupling.
Heart rate decoupling has been one of my favorite metrics I’ve paid attention to since I linked with intervals.icu. However, I have had a couple of rides, today’s endurance ride in particular, where I’ve had a negative decoupling value.
Am I to understand that if the heart rate decoupling is negative, that means that your heart rate for power was better in the second half of the ride than the first half? Instead of the normal upward heart rate drift, you have a downward?
Yes I think you have that right but I am not sure how to interpret that information. Presumably for that duration you have a good enough aerobic system?
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That’s where my thought was going. It was a very easy effort trying to keep TSS low on a 2 hour ride at the end of a recovery week. But the decoupling was -24%. I didn’t know if it was such a low and easy effort that in the second hour I was warm and efficient enough that my heart rate for the effort was lower than when I was “colder” in the first hour. I see a negative decouple sometimes on other endurance rides but it’s normally in the -5% range at most.
This was sorted out a little while ago. Intervals.icu supports configurable fitness and fatigue factors for each activity type that control how much of the training load is applied to fitness and fatigue respectively. If the fitness component is zero then the activity isn’t counted for time in zones.
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Feel like this is fairly normal. When I’m feeling fresh enough, z2 and even z3 I find that I can hit pretty good decoupled numbers provided I avoid the temptation to start throwing sprints in.
Massive thanks for everything David. Think we should all be donating a few bucks towards this is we haven’t already.
I’m sure i’ve missed it, but if i select a section of activity data, and it then zooms in on that section, where does it show the summary for that selection? Not something i’ve managed to spot yet.
Thanks again
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Mr. Tinker… do you have any plans to implement an all time PR system similar to the TR setup (see image). Secondly, if this was implemented it would be even better to get email updates whenever an all time PR is broken!
As always, keep up the good work!
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Thanks!
Thats on the todo list but not implemented yet.
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