Fitbit Question

donjtomasco
donjtomasco Posts: 790 Member
edited December 2024 in Health and Weight Loss
I lift weights for 70 minutes which I log as 340 calories (per multiple google searches and this seemed close enough for me). In between sets I walk for a minute then do my next set, so I am pretty constant the whole time. I did a 22 minute walk after my workout.

Fitbit gave me 65 minutes walking for 492 calories. So this is puzzling.

It seems safest to take 1/3 of the 492 for my walk (the 22 minutes) and keep the 340 that is what my lifting workout should be.

Is this right or wrong? Should I really use the 492 plus 340? Lifting three days a week and missing by that much each time will add up. I don't want to undercount then not be eating enough calories back. I know Fitbit will keep calculating calories burned based on heart rate, so it's hit and miss. But on days like today, I don't want to over eat if I am giving myself too many calories burned, or visa versa in not eating enough calories back.

I know that I can find out over time, which is one answer, but if someone knows for sure what I am stuck on here and can tell me which way I should be counting, I would greatly appreciate it.

Thank You!

Replies

  • PAV8888
    PAV8888 Posts: 14,483 Member
    Fitbit gives you (and MFP) an estimate for your TDEE at the end of the day (this is how integration works).

    If you are entering your weight lifting as a manual exercise, and assuming integration is working correctly, this manual exercise overwrites what Fitbit detected during the time period in question.

    The value you've given manually is the only thing that is counted during the time period in question.

    If integration is not working properly... who knows!

    You can check on Fitbit.com to see if your manual activity is visible. If it is, it has "supplanted" whatever Fitbit had detected during the time period in question.
  • lorrpb
    lorrpb Posts: 11,463 Member
    edited November 2019
    Walking calories = distance x 1/3 bodyweight. So about 50 cals pee mile for a 150 lb person. For 65 min I assume you’ve gone about 3 miles or a bit more, 4 if you’re really knocking it out, so estimate from there based on your bodyweight.

    PS If you’re syncing your steps, there’s no reason to log your walks separately.
  • donjtomasco
    donjtomasco Posts: 790 Member
    I do not sync my fitbit with MFP. I neglected to say that. I manually enter minutes and calories burned per walking session, then for my weight workouts. So my exercises are all manually entered.

    My weight lifting was for 70 minutes then I walked for 22 minutes for a total of 92 minutes, but fitbit only picked up 65 minutes for calories burned. This is because (I think) I have enough resting in the first part of my lifting to not register enough of a rise in heart beat to count as a calorie burn.

    Sounds like I just need to wing it and see how it comes out on the scale over time, as most things usually end up.

    Thank you for your responses.
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