Heart rate zones are beyond weird...

[amymurray122]

My heart rate zones seem like they are grossly miscalculated. I'm 43 which should put my max at 177. My resting heart rate is 79. I've got everything set to default. Why are my heart rate zones calculating so high? I even grabbed the example that's in the FAQ for heart rate zones, because it is so very close to what my actual numbers are, so it seemed like a pretty good representation of what mine should look like. Any suggestions? Ideas as to why this might be happening?

 

 

 

[LZeeW]

@amymurray122   I agree with you.  Based on your information, your moderate zone should be 118-136.  I didn't calculate the other zones.  Please double check your date of birth on both your Fitbit and Google profiles.

[amymurray122]

My birthdate is correct in both. I'm not sure what's going on. I do have a heart rate thing where my heart rate when standing is quite a bit higher than my calculated RHR (average 110 when standing), but I was told that shouldn't make a difference. That would have me in "Light" a LOT during the day, but no big deal, I guess. But it's very discouraging when I'm walking outside with elevation and terrain variances at a sub-18m pace and I'm still in "Light" for the entire walk.

[amymurray122]

I did a quick inquiry and it came up with 2 different zone sets:

Light: <104
Moderate: 104 - 132
Vigorous: 133 - 158
Peak: 159+

Or

Light: <118
Moderate: 118 - 136
Vigorous: 137 - 161
Peak: 162+

The first one would have me in moderate pretty much all day, but the second would be okay. While it might not be entirely accurate, it would definitely be closer than being in Light until 136bpm.

[LZeeW]

@amymurray122   I don't know what sources you were using to get the two zone sets.  There is one equation for calculating zone minutes.  It uses your age and the resting heart rate you see in your Health Metrics.  It uses 220 - age for max heart rate, unless you set a custom, which you didn't.

I don't have any other suggestions.  

[amymurray122]

Those were both from Google - I asked "if i am 43 years old and my resting heart rate is 79, what would fitbit calculate for my heart rate zones". Not sure why it came up with 2 different sets. And of course, now it's coming up with a different result where both sets are the same. Each time I refresh, the results are different. 🙄 Gotta love AI!