8.00 Update - What have Garmin done to 'improve' resting HR detection?

Almost everywhere you search for RHR you get a definition that says that your RHR is your heart rate just after/prior to waking up. Not the lowest heart rate you achieve somewhere being passive during the day. If Garmin changed their algorithm to reflect that, they should communicate that, but if they just give the lowest heart rate they can find during a day, then they're out of sync with a lot of others, and that would make comparing RHR useless.

That is exactly what they're doing now. I can confirm this by direct observation.

If I wake up, am quietly in bed, and check the RHR graph on my watch it will be wildly wrong for the current day. Get up, go use the head, move around a bit and check it again -- it's pretty-much bang-on with what the graph for the overnight period just before I woke up shows.

They're doing it right now, although I agree that documenting that would be nice....

"Your resting heart rate is the heart pumping the lowest amount of blood you need because you’re not exercising. If you’re sitting or lying and you’re calm, relaxed and aren’t ill.."
-American Heart Association

The RHR is NOT your heart rate 'after/prior to waking up,' in the strictest sense. My heart rate at rest, sitting calmly has been consistently in the high 30s, low 40s, yet since this update the RHR value is 15-20 points higher.

Garmin is clearly not using a scientifically validated RHR algorithm here.

I would think you would need to be careful about just grabbing the lowest number and saying it is the RHR.

I know I sometimes get ONE very low reading once in a while, I don't know why but it is usually when I am sleeping and wearing the watch looser than normal. I wouldn't want that value to be listed as my RHR. For me the accuracy seems to be very good. It did drop a few beats lower then before since the upgrade to V8.0 but close to what it was.

for me the change was the right thing to do.
RHR is now working like it should.

Thank You Garmin

Well, if the change is to make the RHR for the day whatever is registered in the morning after putting the watch on then this is still not behaving as intended. I have observed three days running the RHR figure changing late into the afternoon (just not to a value that looks correct).

I agree the RHR is worthless. I can see no logic in it. If it wishes to no use lowest non-sleeping HR that's fine BUT that means that once it senses I'm awake it needs to replace its RHR number as lower figures comes in (53 replaced by 51 once detected). If it just picks one random moment its not a valid measure.

Also why cant we simply get the the daily low HR or sleeping HR? I have to go to the Connect website and manualing scroll along the sleep period line to find the lowest value -How stupid is that?

Garmin please fix RHR and add SHR/low HR??????

If you're not sleeping with the watch on I don't see how you can possibly expect an accurate RHR to be recorded. Nearly everyone has their lowest stress level and heart rate occur during sleep, usually quite late in their sleep cycle just before waking up.

So where is it stated that recording a person's resting heart rate during the daytime isn't accurate? Is there a paper on this that I am missing?

I think most would agree that the next best thing at least, would be over an average of a minute or so during the day when well-rested. Or is there something scientific here to prove me wrong, too?

1. How Garmin claims it works - https://support.garmin.com/faqSearch/en-GB/faq/content/F8YKCB4CJd5PG0DR9ICV3A

2. The attached image shows my daily HR chart. It is typical for me and shows the lowest HR recorded overnight. I am not seeming anything that makes me doubt it is working as described above.

To be honest I am not to worried about the exact algorithm used to calculate the recorded RHR value for a day as long as it is consistent and I can see trends over time.
ciq.forums.garmin.com/.../1311733.png

1. How Garmin claims it works - https://support.garmin.com/faqSearch...Jd5PG0DR9ICV3A

...this link hasn't changed at all since the latest 8.00 modification went live, but what they are describing for the daytime RHR detection appears to no longer apply.

This I can tell through direct observation, and through my RHR stats, which now look rather silly (screenshot below):