Hm, interesting. Maybe it only uses data from Garmin HRMs? I’ve been using a Polar H10 for a couple years now and have only ever had FTP updates from 20 minute efforts. I’ve also been doing a lot of VO2Max max efforts and lots of Xert breakthroughs with no updates after. I double checked the FIT file and the real-time HRV data’s there.
As an aside (and I’ll post more about it sometime soon), XSS Buckets are awesome and should be the gold standard for tracking outdoor workouts. If I ran an app, I’d be working on ripping that off asap.
Hmm, that’s how it’s been set up the whole time. I get FTP updates on 20 minute efforts, but it sounds like some folks using Garmin HRMs will get FTP updates from VO2Max efforts, too?
This is why I find it annoying how reviews only look at HR data and not HRV. It shouldn’t be that hard to look at (see suggested test protocol above) but all I hear from reviewers is there isn’t much demand to look at that data to spend the effort. That is true, but its hard to have demand for something that produces mostly useless data if you don’t use a good strap and most people don’t use a good strap (bad straps and optical HR sensors seem to be the majority). Even with a good strap HRV derived metrics are not an ideal metric to focus on (if the number is x do y) but instead are something that can be helpful to influence your interpretation of what is happening.
Its my frustration with the sports tech field in general. We have known metrics that have existed for over almost 4 decades (power, HR) What if we already have to low hanging fruit of cheap/easy to collect data for the masses (metabolic carts, lactate meter don’t count as cheap and easy for the masses) New metrics may not be as good as existing metrics (can’t just base your training on it alone) but can still fill in gaps on how you interpret the data. If those new metrics can be based on already collected data great, if those new metrics demand existing sensors to provide more accurate data that shouldn’t really be a huge limitation. For example you can tell breathing rate with HRV. Is this as good as a sensor that directly measures breathing? No, its easy to play with your breathing and screw up the calculation or be someone who doesn’t breath normally. A hexoskin shirt is much better for this but the HRV based metric may be good enough if trying to look at general breathing trend. (Yes garmin already has this, but since they don’t generally have good accuracy in the HRV numbers I’m not sure how good it is)
I wish those who try to make use of HRV metrics would work together in creating some certification for devices that are known to produce good data which would also require a device to publish the sample rate of their sensor.
I do wonder how much those metrics are impacted by good vs not good HRV number.
Good - a HR strap like a polar paired through BLE to the garmin
Not good - any strap (good or not) paired over ANT+ (garmin doesn’t process the ant+ packets correctly to get good HRV numbers even though an app that does raw ant+ data handling can get good HRV numbers)
not good - a strap that is known to produce bad HRV numbers (Wahoo Tickr)
not good - any optical HR data (built in or external sensor)
Literally, only a single person has ever asked for it. You. Though, I do lots of things by request from a single person.
For nighttime HRV, I do compare such data in various reviews already. Largely because almost everyone can use HRV at night data, versus HRV during a workout is at best iffy right now - and even Marco Altini has said so straight up about DFA.
I have a TRACKR and two Polar H10’s. I see no differences in reported HR between the three, and all work well. I’m quite happy.
I like the fact that the TRACKR is rechargeable and they use the same charging cable as Shokz does, so even though I rarely need to recharge it, I always have an appropriate cable in my bag.
I bought my Trackr at release and it has been rock solid. Not a single issue to report. And I had come from that Tickr that I RMA’d 2-3 times due to the widely reported quality issues so I was very discerning when I got the Trackr. Highly recommend especially if you are in the Wahoo ecosystem. They got this one right.
Though, I do lots of things by request from a single person. 