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maximum heart rate and calories

Former Member over 4 years ago

Hi, I notice that the vivoactive 4 tends to underestimate the active calories burned, my data has been entered correctly ... does the maximum heart rate value affect the calories burned with normal activities?

I am bradycardic and I tend to have a low resting heart rate despite not being very sporty, this probably also affects calorie consumption ...

0 trux over 4 years ago

The main factors influencing the Calories calculated by Garmin devices (besides the body data) are: the Activity Class, the heart rate, and the HR Variability.

More details on the topics can be found in the following article of DCRainMaker:

https://www.dcrainmaker.com/2010/11/how-calorie-measurement-works-on-garmin.html

And also in the following whitepaper of FirstBeat, the provider of the algorithms used by Garmin:

https://assets.firstbeat.com/firstbeat/uploads/2015/10/white_paper_energy_expenditure_estimation.pdf

0 Former Member over 4 years ago in reply to trux

At the moment I am not training and I have set the "activity class" to 0 ... can the indicated intensity minutes be used to determine the activity class to enter?

0 Former Member over 4 years ago in reply to Former Member

I have an average of 120-130 active minutes per week despite not training .... do I leave the activity class set to 0 or do I set it based on active minutes?

0 Former Member over 4 years ago in reply to Former Member

Perhaps it is precisely the fact of setting the activity class to 0 that causes an underestimation of the active calories burned

0 trux over 4 years ago in reply to Former Member

Unknown said:
Perhaps it is precisely the fact of setting the activity class to 0 that causes an underestimation of the active calories burned

Yes, it is certain

0 Former Member over 4 years ago in reply to trux

So should I set the activity class based on the minutes of intensity detected live active 4?

0 Former Member over 4 years ago in reply to Former Member

Only today I'm about 80 minutes, without training ...

0 trux over 4 years ago in reply to Former Member

Unknown said:
So should I set the activity class based on the minutes of intensity detected live active 4?

Hard to tell, I do not know your metabolism. Adjust it as needed to meet your expectations. Whatever you do, the calculation will always remain just a very raw estimation. The absolute numbers are not that important. What is important are the tendencies and the evolution.