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Resting heart rate increase

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‎06-10-2019 00:46

‎06-10-2019 00:46

Hi everyone, i’m not sure if my Fitbit is accurately recording my heart rate. I was recently ill with chickenpox so had to cut down on my workouts for a few days and take my Fitbit off and in that time my Fitbit says my resting heart rate has increased from 71 with good fitness levels to 78 and poor fitness levels. I have been working out as normal for the past week again and not struggling with my workouts but my Fitbit seems to think I’ve suddenly become unfit in the space of 3 day. As a result I’ve upped the intensity of my workouts as I have a fitness test coming up and my resting heart rate isn’t budging. 

 

Yesterday I did some cardio on the elliptical trainer and I always do about 20mins in my peak heart rate zone without fail but my Fitbit was reading my max heart rate was 130. I turned the tension up and pedalled faster and my Fitbit heart rate was reading 125 and decreasing whereas the heart rate monitor on the elliptical machine was reading 173bpm. It doesn’t make any sense to me that no matter how hard I work out my Fitbit doesn’t get out of the fat burn zone and decreases during a tough workout. I’m now starting to think my Fitbit isn’t recording accurately.

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‎06-10-2019 07:41

‎06-10-2019 07:41

A.  It is natural for your resting heart rate to increase when you are getting sick.  I expect it is showing that your body is still recovering.

B. Don't expect your RHR to drop in a few days from increasing your workouts.  As a long-term trend, that would be expected, but in the short-term, RHR varies more from general health, lack of rest, etc.

C. If your heart rate is dropping as you increase intensity, and your machine measures heart rate and it is increasing, I expect your Fitbit is not reading HR correctly.  Sometimes for some people, it takes a while to detect sharp rises in heart rate.

Before posting, re-read to see if it would make sense to someone else not looking at your Fitbit or phone.

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‎06-10-2019 08:33

In response to JohnnyRow

‎06-10-2019 08:33

I measured my resting heart rate by other means this morning and it showed up as 63bpm whilst my Fitbit is saying 78bpm. It has never shown up as low as 63bpm on my Fitbit but does when measured in other ways. I’m sure it’s inaccurate. 

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‎06-10-2019 08:43

In response to UnicornGlitter

‎06-10-2019 08:43

@UnicornGlitter wrote:

I measured my resting heart rate by other means this morning and it showed up as 63bpm whilst my Fitbit is saying 78bpm. It has never shown up as low as 63bpm on my Fitbit but does when measured in other ways. I’m sure it’s inaccurate. 

Due to Fitbit's method of calculating RHR, it is common to see your heart rate a few beats below Fitbit's RHR but I have never seen it near that far off.  Are you reading RHR from the Versa itself or from your phone app?  And was the 63 from manually feeling your own pulse?

Before posting, re-read to see if it would make sense to someone else not looking at your Fitbit or phone.

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‎06-10-2019 10:18 - edited ‎06-10-2019 10:24

In response to JohnnyRow

‎06-10-2019 10:18 - edited ‎06-10-2019 10:24

The Versa itself and the app are both reading the same it did drop down to 73 last night before jumping back up. I did count my own pulse and I had someone else do it for me we did it a few times and got 63bpm each time. I just looked at the app and some days it hasn’t registered my HR at all and on other it had jumped from 71-80 bpm in one day. My resting heart rate has never been 80bpm ever in my life. If it’s not registering my HR on some days maybe that’s why my resting HR is so high because it’s almost as if it doesn’t think I’m moving much if at all. The battery seems to be dropping much quicker than normal. 

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