I was curious about energy expenditure after looking at my own food tracking over the past six months, which shows I ate an average of 2,950 calories per day, yet have gained at most, maybe five pounds, if any. There's a chance the recorded intake is a bit higher than reality, as I was eating beef from the farmer's market often, and I probably guessed too high for the fat content. But at most it'd be about 150 calories too high per day.
So I'm wondering if my body is burning tons of energy for some reason, even though I'm mostly sedentary. Average 2,800 steps per day over the past month. I think a typical energy expenditure for someone my size and age and activity is around 2,250, according to a
calculator on Mayo Clinic's website. 2850 for "very active" which is quite far from my activity level.
Looking at the data from the study, it doesn't look like that's a universal thing, if my own recorded calorie count is even accurate for me. The average intake seems to be similar for both groups. There are some outliers both high and low, but their body weights are also pretty high and low, respectively, compared to most of the other participants.
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Definition of the metric: "total energy expenditure in kcals/day from the full whole room indirect calorimeter measurement on the Baseline chamber night". So that was before the CPET.
Looks like it's maybe trending up in the three days after the CPET:
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Largest difference seems to be during sleep on the third day after CPET:
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The study says no differences found, although a p-value of 0.07 for that last sleep measurement.
S12:
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Fig S9A-D:
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I might try to see what the data looks like if the energy expenditure is normalized to body weight.