How you uploaded data from Fitness HRV Dfa-1 to intervals.icu with other metrics together? Or do you recorded with Garmin from fitnessHRV ?
For cycling I have a Garmin Edge 840 with AlphaHRV IQ field. That records everything together.
For running I have a Coros Pace 2 but I carry the Edge 840 in my backpocket to record a1 on a special profile that is setup as indoor cycling. After the run I merge both fit files with āgotoesā to insert the a1/resprate.
I havenāt found a way to merge data from FatMaxxer or Fitness HRV. Fitness HRV is only used as a dashboard for indoor riding, I dual record with my Garmin.
1 Like
You will only spend money that goes to Google. The APK from github is free to install.
1 Like
Fixed thresholds do not exist with DFA, it has been known for a long time, we are working on a paper with a procedure to extract thresholds through hrv with a different system, the evidence we have is quite good and we have started to collect evidence in the lab.
8 Likes
As interesting as HRV and DFA data seems to be, I do still find it incredibly hard to piece together the current wisdom around it.
For example I see these āthere arenāt fixed thresholdsā statements pretty often, yet on the AlphaHRV ConnectIQ page it still says āit is well accepted that alpha1 = 0.75ā. 
The topics on this forum are helpful, as are various blogposts here and there, but I so wish there was a more authoritative single location to tell me what to use DFA for, and just as importantly, what not.
(So, definitely looking forward to that paper!)
At this point thereās nothing more precise. Itās too soon to use alpha1 as a meaningful training metric but I still believe that it will be at one point. I follow the topic with great interest.
@Luisma_Gallego_Soy_P and @Inigo_Tolosa (the devs behind the AlphaHRV IQ field for Garmin devices) are working on a paper which looks promising. They use RR/A1 (also available in Intervals), bringing respiratory rate in the algorithm. And they also state that there is no definite a1 thresholds. In my personal case, a1 = 0.75 seems quite accurate but a1 = 0.5 for AT is completely off.
HRV, on the other hand, has already proved to be a great metric to follow regarding stress and recovery. Morning HRV together with resting HR and subjective feeling scores can give you some very meaningful information to adapt your training strategy.
This blog post and the subsequent linked articles, explain a lot and give you very good advice on how to use morning HRV.
3 Likes
I donāt know what you mean by authority, personally I have been working and studying dfa for about 3 years, I have had time to collect thousands of data, I donāt think there is anyone who has more data than me on alpha-1. To say that the first threshold is at 0.75 is like saying that we all have the LT1 in 2mmol of lactate, there are athletes who do but the vast majority do not have it, the most accurate is to be able to have the VT1 through a laboratory test. The IQ is set at 0.75 but if you have noticed you can modify it and customize it. Doing a paper needs time and laboratory tests with different athletes, in this case we are going to try to extract data from 50 athletes through laboratory tests. In the meantime you can use dfa as an internal load indicator and it is quite valid. If you rely on the 0.75 you have papers by Bruce Rogers that explain the procedure to follow, I personally would not do it and if I do it I would analyse the result very well.
1 Like
If you want to control loads you can use the HRV as @MedTechCD has told you, you have many parameters (there is not only the rMSSD), you can see how the organism is managing stress by interpreting the sDNN, you can see through LF/HF ratios what activation of the autonomic nervous system you have in that measure, if all this together with the resting HR (very important) and a simple questionnaire that the athlete can write you can adjust the loads very well and see how your athlete is assimilating the training.
2 Likes
I did discover KubiosHRV recently yes and am intrigued by the numbers, though even there to the point of info overload, plus some doubts when it gave me a PNS of >5, despite that being rather elite which, nope, thatād be nice but I am definitely not.
Anyway, sorry if I sound ungrateful, I admire your research, probably Iām just overwhelmed by the resulting data. 
Itās the Wild west out there what with Continuous Lactate Monitors seemingly just round the corner, Respiration Vests, CGMās, different forms of wearables, etc.
Iām sticking with AlphaHRV. In fact itās the main reason Iāll soon be replacing my Garmin with another Garmin
1 Like
I suspect the page needs to be updated as that premise was the initial hypothesis but has since been shown to be more nuanced. Thatās as I understand it.
I am in the process of getting some testing protocols drawn up, to load in the Guides/Help section - a closed topic, so that the process to test is clear for everyone to see.
AlphaHRV is one of these protocols, but I first need to test and understand it myself. Anyone with questions can then use the general discussion to ask. This way the information is in one place, and the important information isnāt lost among the general chit-chat.
3 Likes
I do have some pending work to update the description (text and images) in Connect IQ store for alphaHRV
2 Likes
I can imagine you are quite busy at the moment
I know support for this has ceased but I still use the Intervals_API_Tools_Office365_v1.5 excel sheet regularly enough. Today I refreshed it to find my Training Advice but the sheet produced an error as seen below.
Column āAIā of the Wellness tab of the excel sheet is ārampRateā
Has this field been removed from Intervals.icu or something? Why can the sheet not find this field anymore?
@david @MedTechCD Any ideas why ārampRateā column is no longer found? Did an update to the site code break this sheet? It was working a couple of days ago without issue.
Thanks
Iām still using it and had no problems this morning.
Verified the Wellness tab and rampRate came in normally but in my case it is now column AN. It moved up right because other columns got inserted. Today, column ālockedā was added by the new functionality to lock Wellness data.
Did you make any changes to the original sheet that address columns by fixed column location? The sheet was made with all references to Column Names, not Column location. If you did not change anything, it should work, but if you somewhere made a change or addition addressing column AI, that would brake it.
1 Like
Thatās really strange so. I never changed anything on the excel sheet. I will try again now.
Edit:. Still getting same error. I will go back and find original template and see if that works for me.
Iām using my original file, which is not the Intervals_API_Tools_Office365_v1.5 version.
Mine works fine too.
On the Data tab, if you click on Queries and Connections it will/should open the Task Pane Options to the right. Hover your mouse over the Wellness data (donāt click) and it will the following:
Then click on EDIT to open the Power Query Editor
From here you can check if the RampRate shows, and possibly troubleshoot.
1 Like
Thanks. I was also using v1.5
Went back to the Google Drive link and downloaded v 1.6 and getting same error
I will do what you suggested now @Gerald and see what I come up with
Iāll download v1.6 and see if it replicates your problem.
1 Like