RHB calculations must have changed

[Lolita60]

in previous posts, I read that RHR not taken into account when activity suchvas walking is involved. If so, how can you explain that I passed from a 58 RHB to 65  (and lost 3pts on my cardio fitness score) but if I analyze the graphs it is clearly below 60, so to achieve a score of 65 the very first thing in the morning, it has to take into account when I get up and walk. I was about to seek medical attention when I thought of comparing past graphs !  to my surprise the only difference is the score given!! Glad to see I’m not the only one . Was the change in the  algorythm made to merge Fitbit to Google ? 

[JohnnyRow]

Sorry, but I'm having trouble understanding your points.  'RHR taken into account for walking' - taken into account how? for what? for some king of calculation?  Is this all about cardio fitness score?  Or is this about resting heart rate?  You talk of analyzing the graphs - which graphs?   score of 65 first thing in the morning - what score is this?

[Lolita60]

My Resting Heart Rate used to be around 58, it now reads avg 65 even at 4:24am right after waking up. (eventough my sleeping heart is around avg 58)Since Fitbit says that resting heart beat average does not take into account when one is walking; how can the gap be explained?
Furthermore, I compared my heart beat graphs (from the heart tile) from when my RHR was 58 and now at 65 and they show roughly the same figures, but only the score given to it is different.
(see picture below). How can I get 65 avg with these data if walking is not taken into account and rate reading is taken first thing in the morning? I understand that resting and sleeping heart rate is different as resting rate fluctuates as the day go by, but that too did not vary from previous weeks.
[IMG_6907]
By having a higher resting heart rate score, my cardio fitness score declined by 3 pts.

[JohnnyRow]

You might have a mistaken idea about resting heart rate. RHR is basically just your heart rate when you are at rest, and well-rested.  To quote Fitbit: "Resting heart rate is the number of times your heart beats per minute when you’re still and well-rested."  Fitbit does not reveal how they calculate this, but it is not just some average you can get by looking at your heart rates during the day and excluding times such as when you are walking.  And it does not vary substantially, if at all, during the day.  It generally moves slowly, generally varying only 1 or 2 bpm per day.  Its usefulness is to look at trends over probably at least a week to perhaps see if can tell when getting it, or perhaps to see changes in fitness over even longer periods of time.

[Lolita60]

thank you for taking the time to try to explain.
But basically what I was trying to get is a confirmation from someone at Fitbit on whether or not they have changed the algorithms they use to calculate the RHR in order to merge with the Google one.


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