HRV-Guided Training

Very good point. Didn’t realize that there is an obvious difference…

As @MedTechCD says this can’t be done right now. I have considered making it possible to import CSVs of additional data streams to associate with an activity but it is tricky.

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Would be pretty cool, but understand not a priority!
Dave

@Rafal_N you can pair your Edge530 to the HRM in BLE mode
Search for all sensors instead of heart rate sensors
Garmin will show your HRM for pairing in ANT+ mode
Select “more”
Option for BLE sensors will be shown
After selecting this, your sensor in BLE mode should be available for pairing

I can’t test on any watch, but I am quite sure that for watches, if you do not enter in a particular activity, the app will not be activated. So sensor will be free for pairing. Could any confirm this?

No need for a different version. You can use the app on watches for running right now.
But, please consider that when running, artifacts are much more probable due to body movement

So, today I tried w/ the Polar Strap and wiggled it around a bit for placement. I usually place it on the upper portion of the chest. But since knowing about this app, and the uV readings, I found that placing it on the diaphragm yielded better result. However, all I could get is still just at 1mV or slightly short of that. Can’t get it above that at all. (Could be my skin conductivity isn’t all that great, even after licking the strap / sweat permeated thru)

But, I’m happy to report today that w/ the Polar Original Strap, I’m getting good data with >90% validity and low artifacts. Gonna repeat this experiment again tomorrow w/ the 3rd Party Strap on the new position.



Yes. On the Garmin 5x+, when alphaHRV is not running, I can find the (BLE H10) sensor on other apps. But I’m using ANT+ w/ alphaHRV for reasons I have stated previously.

@david would it also be possible do set average EPOC to “Fields”, so you can see the average of a part of an activity or interval?

+++ maybe on the Fitness-Page so you can see an “progress” of EPOC or to set it in context with power or bpm !?

By the Way… i find EPOC a quite good value to control especially endurance zone rides

like this… https://assets.firstbeat.com/firstbeat/uploads/2015/10/white_paper_epoc.pdf

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I bought a H9 to use with Fatmaxxer but, although it works, it does not give you the .ecg file for export. I then bought a H10 and now I do get that file.

Another big factor is positioning of the sensor on your chest. Fatmaxxer gives you a voltage and the best readings for me are obtained when the sensor is 2 to 3 inches left of centre of my sternum, I think this aspect is something which most would not consider and just have the sensor central.

EDIT - I posted this after reading a post way up the page, now I see the signal strength aspect has been covered, but, ref the H9 and the lack of ecg file from Fatmaxxer, someone may not have known that. If you’re in the market for a new HRM then go for the 10 over the 9.

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Nice to see that you are having accurate data now!
In a general way, moving the strap position up/down will influence the Top2Top amplitude of the signal and the artifact sensitivity due to movement.
The left/right position of the strap wil influence the polarisation of the signal, meaning, the ratio Pos/Neg of the signal. It is recommended to have a signal with a higher pos part. There will be more distinction between P-wave and QRS complex.
I did not realize that the needed left/right displacement could be up to several inches as in @Neil_Pugh 's experience though.
This is all dependent on your physiology, exact place and orientation of the heart in your chest.

What @Inigo_Tolosa wants to see confirmed, is at what exact moment the app kicks in on a watch.
On a head unit, the app starts pairing as soon as a profile with the app page is active. If you never change profiles on a Edge, the app starts as soon as you start the Edge.
But when does it start on a watch that is normally always ON?

  • When you select an activity?
  • When you start an activity

I communicate with Bruce and it was his tip to try different positions, my sensor is right under my left nipple and currently, as in right now, getting 1300 to 1700

Is there a way to “turn on” the voltage measurement in Fatmaxxer? I have a H10 but I only see the ECG RRs and artifacts on the line below the graph, not uVolts.

Unfortunately, the “more …” option does not appear for me. Maybe Garmin changed something in one of the firmware revisions? I have Edge530 fw9.1

This is not possible, because this model work with Ant+ and BLE, I have a 830 and is not easy to pair in BLE mode but after a lot of tries is working good

@Joao_Samora I know that the Garmin 530 supports BLE. unfortunately I cannot connect to devices using the BLE protocol

You need to wait until the option arrives

See the video:

Yes. Option for BLE sensors could delay some time. Usually it’s shown in some seconds

unfortunately, even after 5 minutes, the MORE option does not appear. I also tried with the Magene sensor and the situation is the same. Everything works on the VENUE watch as it did on the Edge530. Maybe it’s a matter of new firmware? What’s firmware on your Edge830?

This BLE thing with Garmin’s stinks.
I can connect my 4iiii Viiiiva using BLE with all devices but the Fenix 5x.
At the other hand I connect the Wahoo Tickr using BLE but unfortunately it is not rated as good for HRV matters…

PITA.

Hi David

I think this activity has HRV data but I cannot get the DFA1a chart or the EPOC chart to show? I tried to reprocess the file but had no luck. What am I doing wrong?

https://intervals.icu/activities/i3514556

Best regards

Keith