Massive calorie overestimate

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  • New_Heavens_Earth
    New_Heavens_Earth Posts: 610 Member
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    heybales wrote: »
    Also be aware if all you are looking at is the MFP created Fitbit adjustment - that is NOT the calorie burn of the workout at all.

    That adjustment is merely MFP correcting itself to match what Fitbit reported for daily burn, so literally:
    Fitbit daily burn - MFP estimated daily = adjustment.

    That adjustment is added to your eating goal. Extra math is done during the day.

    That could be huge workout but very lazy and no adjustment.
    Or no workout and very active daily and big adjustment.
    Or combo of workout and active.

    Or are you saying Fitbit, in their stats for that workout, reported a 400 cal burn for 30 min?

    That's what Fitbit gave me for the exercise.
    Today's reading was 860 calories for 1 hour step aerobics and 1 hr upper body weights. I got a reading of 670 from S health.
  • heybales
    heybales Posts: 18,842 Member
    edited August 2018
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    The lifting will be a known and expected inflated calorie burn.

    The formula for estimating calories from HR is only valid in the aerobic range for steady-state (same HR for 2-4 min). And that's only if your HR is not inflated from stress, dehydration, medical, food, ect. And your stats are avg enough to make the formula decently valid.
    The more the workout deviates from that valid range - the more inflated the calorie burn.

    Weights is exactly opposite - anaerobic and HR all over the place - so that is best manually logged to replace whatever Fitbit came up with.

    If the step aerobics wasn't steady-state but more interval in nature - it too would be inflated.
  • New_Heavens_Earth
    New_Heavens_Earth Posts: 610 Member
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    heybales wrote: »
    The lifting will be a known and expected inflated calorie burn.

    The formula for estimating calories from HR is only valid in the aerobic range for steady-state (same HR for 2-4 min). And that's only if your HR is inflated from stress, dehydration, medical, food, ect. And your stats are avg enough to make the formula decently valid.
    The more the workout deviates from that valid range - the more inflated the calorie burn.

    Weights is exactly opposite - anaerobic and HR all over the place - so that is best manually logged to replace whatever Fitbit came up with.

    If the step aerobics wasn't steady-state but more interval in nature - it too would be inflated.

    The cardio was interval based. I didn't know the weight training could be inflated. Thanks for this info.

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