calculating deficits with fitness bands

jitterbugginlovin
jitterbugginlovin Posts: 11 Member
edited November 22 in Health and Weight Loss
So i am confused about something. I wear a jawbone up and have it synced to mfp. I synced it twice today. Once earlier in the day and once in the evening. Earlier when i had walked less mfp gave me more exercise cals burned than after i walked more steps a few hours later. how can I log steps in my jawbone and have 80 exercise cals added to my diary and then a few hours later log even more steps and mfp adjusts my exercise burn to 67. How does that get calculated out? Im trying to get better at calculating deficits and stuff but i don't understand how i can walk more and go backwards in calories burned on mfp. There must be something im missing and i want to do the best i can! Thank you!

Replies

  • Merkavar
    Merkavar Posts: 3,082 Member
    My understanding is it estimates you total calorie burned.

    Like say at 6 am you have burned 500 calories that would estimate 2000 burned for the day, 500 x 4.

    Say by 12 noon you have gone for a run and have burned 1500 calories, that will estimate a full day at 3000. And adjust accordingly.

    But then you sit around watching TV the rest of the day, at 6 pm you have burned 2000 which I think would estimate a full day burn of 2666?

    So depending on when your active and inactive your mfp adjustment will go up and down.

    For me when I wake up its negative 400 kj. Lunch it's negative 200, after dinner and a bit of time on a tired mill it's positive 500, when I go to sleep it's back down to 200.
  • jitterbugginlovin
    jitterbugginlovin Posts: 11 Member
    Thank you!
  • editorgrrl
    editorgrrl Posts: 7,060 Member
    edited August 2015
    Click the adjustment in your exercise diary to see the math MFP used to calculate it.

    Your UP total burn is TDEE (total daily energy expenditure), the calories necessary to maintain your current weight. Adjustments are the difference between your UP total burn and your MFP activity level (sedentary, lightly active, etc.).

    If (and only if) you enable negative calorie adjustments in your diary settings, eating back your adjustments means you're eating TDEE minus deficit: http://www.myfitnesspal.com/account/diary_settings
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