HRV-Guided Training

I’ll read it.
5-8min. very different from the other.
I’m using Garmin as logger and Golden Cheetah to analyze it.
Ale Martinez has update the chart adding AeT pace/power estimates with the same algorithm for AeT heart rate, that is linear regression using averages from 2 min segments looking like this:

I’ll make some experiment changing the interval right before and after to 5min at least and see what happens.

Tks,

I hadn’t seen the Golden Cheetah implementation yet. Will check that out and try to compare different methods.
Do I need a special version of Golden Cheetah or can I import the chart/calculations?

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I guess 3.6 is required.

Looks like there’s a Play store release of FatMaxxer out now: https://play.google.com/store/apps/details?id=online.fatmaxxer.publicRelease1

And there is a Alpha version too. You can help out testing:

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I have changed how HRV data is stored in Intervals.icu. It now associates each tuple with a timestamp so it maps back to the power and other data (tx @John_Peters_endura.f for the tip). Unfortunately you need to reprocess old files to get this.

This is what the CSV download looks like now. The last column is the HRV data with a ‘:’ between each beat to beat ms value:

On another note I noticed that my Garmin Edge 130+ stopped recording HRV data recently. I suspect letting it update undoes it. Have to repeat this process: HRV-Guided Training - #19 by david

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Been using this for a whole now, Galaxy A70 and a Polar H9, had 1 crash, other than that, perfect

I’m using a H9 and I believe the only difference to the H10 is that the 10 has dual band recording. FatMaxxer app definitely works with the H9 and I’ve sent files to Bruce Rogers and he has been able to use Kubios to analyse them.

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Ian from Fatmaxxer would appreciate if you gave him the prove that H9 works just as good as the H10. He only tested H10 so he’s not going to state that H9 is working without being sure.
The first lines in the ReadMe contain

This app requires a Polar H10 (or possibly H9).

Just head over to the Fatmaxxer Github page and give him the good news.

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Anyone know if the old Garmin Edge 1000 can record HRV data, or will I need a more modern unit?

If so, does anyone know what the lowest end (cheapest!) model they do that can record it is?

My Edge 130+ works. Not sure if thats the cheapest though.

Hi guys,

I’m trying to enter this HRV world but I’m still lost.
Too many conflicted info and the need to be a code/computer savvy person is making it more difficult.
I hope to get some user friendly advise from people here.
I’ve been reading On Heart Rate Variability (HRV) and readiness | by Marco Altini | Jul, 2021 | Medium and @Alan_Couzens on Twitter that appear to be two mais points of reference.
It appears apps “readiness” are useless and the only really valid HRV measures are from Oura at night and morning readings so I ask why would we need Garmin devices to record HRV on rides/activity?
Appreciate any help.

Regards

HRV data during exercise can theoretically help you find VT1. This is a different use-case to using night time HRV or waking HRV to help gauge need for recovery and so on. There is more info here:

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Ok about vt1.
But what about training recommendations?

Tks

HRV can indicate the state of your autonomous system, the brake down of your sympathetic and parasympathetic responses. Which in turn can indicate your ‘readiness’ to absorb a training load.
In short HRV does not give your a training recommendation in terms of what to do but it can help guide how well your body will cope with different intensity levels. This side of HRV is the one that is best taken at times of rest when there are no other factors that could influence your HRV

I known what it is but I’m looking for a user friendly recommendation a not having to code all those variables and process for a result.
Look the terminology: sDNN, rMSSD etc … kkk


Seems like the Edge 1000 might collect HRV data (once you’ve used that fit file to change the settings). I just did a test record and it shows up as a data item here…

https://www.fitfileviewer.com/

However, can’t see any HRV related options appearing for that activity on intervals.icu so I don’t know if it made it up to Strava properly or not.

Intervals isn’t doing anything yet with the HRV data from an activity, but it is saved and you can download from the activity interval data page - streams csv button.
I don’t think Strava passes the data though. When synched from Garmin Connect, the data is there.
HRV during exercise is still in very early development phase, so it’s difficult now to get something meaningfull from the data without a lot of background knowledge. You can use the download from Intervals and let it replay in FatMaxxer to get your DFA-a1 curve for the entire workout. Thus if you planned an enedurance ride, you can check in FatMaxxer if your DFA-a1 was around 0.75, which represents VT1 intensity. This same functionality will likely become available in Intervals when David finds the time for it. It’s not a priority now given the fact that it is still in development.

Regarding morning HRV, I’m working on something similar as HRV4Training app but in an Excell file. No idea when it will become usefull, but I plan to share it when it does.
Readiness is one single number made up from all the different HRV parameters and is intended to make it more user friendly. But there is a lot to take into account before you can make a training recommendation. Your daily RMSSD and 7d baseline in reference to your normal values; the trend of the baseline; the coefficient of variation; your resting HR and the trend of it …

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Thanks, that’s the bit I was looking for.

Any idea what to press in FatMaxxer to do that? Can’t see much in the way of buttons etc!

You need to subscribe as a Tester and activate Developper mode for that function to become available. “Import and replay RR log” from the menu top right. Goto the Github page and anounce as a tester.
You may need to slightly modify the csv file from Intervals. It should only contain Timestamps with the RR interval.