ANSWERED
@N8teGee -
I enlarged the image so it is easier to see the zone definitions in the exercise record.
Allowing for a change in my resting heart rate from 63 to 65 in the past few days, changing my zones from 86/97/111 to 87/98/111 (should be 112 if rounding, apparently FitBit uses integer values here) my exercise record for my second treadmill session today shows they are being used, and my device was showing the proper text values under the heart rate during the session.
The AZM totals don't foot exactly, but I am not going to complain. It seems that the AZM numbers are for "each device clock minute" while the minutes in each zone are for the "exercise minutes". It looks like the only way to ensure they foot is to start the exercise at the top of the device's minute (which is not always the same as your mobile's clock - my Versa 2 is regularly about 3 - 7 seconds slower than my phone). I was watching the AZM value on the device update three seconds after my phone changed the time on it's display and the exercise's elapsed time was 23 seconds into the individual minute.
Also, another contributor to the difference could be that I took a three minute pause to check in an Amazon delivery and the time in zones total 48 for a 45 minute treadmill session. Another quirk, that I believe has been mentioned in another thread where a guy pauses "walks" for over two hours!
Sorry for the long discussion - that's the "geek" in me coming through.
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With your age given earlier and a stated resting heart rate of 65 you gave in your most recent post and using the image from earlier post, the zones you show in the image tell me you changed your Max Heart Rate to 150.
Under the old method you stated you had zones of 94 fat burn, 132 cardio, 160 peak.
There is just no clean way to come close to your old numbers for all zones under the Heart Rate Reserve formula. But I can show you the effects of changing your Max Heart Rate to different values.
The first data row is the old method. The last data row is the new method without overriding Max HR. The other values are for overriding Max HR with 130, 140, 150, 160. 170 and 180. All zone values are rounded to the nearest whole number, while FitBit will just convert a fractional number to its integer equivalent.
Good luck and best wishes.
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@Ssay13 -
Are you taking Beta Blockers? If so, talk to the doctor that prescribed them.
Beta Blockers throttle down your heart rate even during exercise. This was just confirmed with my Cardiologist September 3rd during my semi-annual office visit after I asked him about what I read in the Harvard Medical School Harvard Health Letter from November of last year. In that article it was stated that individuals taking Beta Blockers should reduce their Max Heart Rate by 20%. He was happy to see me hitting high 90s and low 100s in my treadmill sessions, saying that was the best range for me and to not go above 110 for any length of time.
In the chart below are three data rows showing Heart Rate Zone cutoffs:
Traditional formula which are straight fixed percentages (50, 70 and 85%) of your Max Heart Rate which is defined as subtracting your age from 220. For me, as a 68 year old male, my Max Heart Rate is 152.
Heart Rate Reserve. Subtracting your resting heart rate from your traditional max heart rate results in that reserve.
40% of the reserve is added to your resting heart rate to establish the beginning of the Fat Burn Zone.
60% of the reserve is added to your resting heart rate to establish the beginning of the Cardio Zone.
85% of the reserve is added to your resting heart rate to establish the beginning of the Peak Zone.
- Heart Rate Reserve utilizing my modified Max HR (220 - 68) * .8 = 120, instead of the traditional 152.
Remember earlier when I mentioned my Cardiologist telling me not to go above 110 for any length of time? That is the start of my peak zone under the modified Max HR calculations. No wonder I was gasping for air when I trying to hit Cardio (116) using the Heart Rate Reserve zones - I was already in Peak.
Be advised that if you decide to change your Max HR value, it current cannot be done in the mobile app (at least not in the iOS mobile app). You need to change it in the Settings page in the Web Dashboard, save the change and sync your device. Of about a dozen people that have tried that when I recommended it, only one individual could not get it to take. Once person had to log out of the app and back in for it to take.
Good luck and welcome to the boards.
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