Help with some undocumented feature of fitness tab

1

This is the current state of the fitness tab, without additional charts:

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The first question is about the “purple” zone. I was unable to find the associated documentation.

I was also unable to find the documentation for the “transition” and “gray zone”.

Should I trust risk zone on the last activity?

Last, on the left of the fitness chart there is the “training load per day”, but with “Fitness Chart” disabled it is not true.

Thanks
Manlio Perillo

2

You are just starting out and the Fitness chart needs 6 weeks of data before it becomes meaningful.
Check the first few posts of this thread to learn more about it

3

Before opening this new topic I first read the FITNESS PAGE, but I was unable to find what the purple zone means.

Thanks
Manlio Perillo

4

Fitness = CTL (Chronique Training Load - 42 day avg of your load)
Fatigue = ATL (Acute Training Load - 7 day avg of your load)
Form = TSB (Training Stress Balance - difference between CTL and ATL)
Anything you want to know is described in detail on TrainingPeaks under the PMC (Performance Management chart)
Intervals is using other naming because the original naming is trademarked. But it is essentially the same.

5

Thanks again.
However I think my question was not specified correctly.

What I mean is the purpose of the “big purple circle” on the right side of the fitness chart.

Purple represents fatigue. Does the big purple circle represents a high fatique?

Thanks
Manlio Perillo

6

Ah, got it now! I thought those big coloured circles were ‘highlights’ that you added.

No, that big purple circle is the result of a ‘Season Best’/‘Achievement’, but it is too big just because you are on such a small date window.
Set the date-range to last month or something like that and you will see the purple dot on the fitness chart in a more friendly way.

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The Red ones are detected FTP increases (and maybe also LTHR).
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7

Thanks!

I assumed the red circle means “avoid staying in the high risk zone for long or you might become over-trained.”

About the circle diameter, why not add an option to reduce the size?

Thanks for your time.
Manlio Perillo.

8

The Fitness chart doesn’t make sense when displayed for only a couple of days.
It’s an overview of your activity and the impact on your body that should be looked at for a period of 6 weeks or more.