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Do-It! Help: Inside Do-It!
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Basal Metabolism Formulas
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Your basal metabolism is the amount of energy you use every day, just by being
alive. It is measured in Calories per day, and is also known as your metabolic
rate. Your body uses this energy to keep your heart and lungs working, to
maintain your body temperature, as to keep each of your individual cells
supplied with energy.
Your basal metabolism depends on a few different factors:
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Weight: |
This is the most important factor: the more you weigh, the more
calories you use per day.
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Lifestyle: |
Another factor is your lifestyle. If you usually walk around a lot
at your workplace, you will be using more calories than someone that sits at
their desk most of the day.
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Age: |
As you grow older, you generally use fewer calories.
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Do-It! Calculates your Metabolism |
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There are a number of different ways to calculate your basal metabolism. Do-It!
uses the Harris-Benedict equations:
Males (in calories per day) =
66 + (13.7 x weight in Kg) + (5 x height in Cm) - (6.8
x age in years)
Females (in calories per day) =
655 + (9.6 x weight in Kg) + (1.8 x height in Cm) -
(4.7 x age in years)
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Metabolic Modifiers |
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In addition to your basal metabolism, you can select a general activity level
each day (on the Personal Profile tab).
This activity level will account for typical activities during your normal day
that use calories up, but are not considered as exercise.
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Activity Level |
Additional calories used each day |
Notes |
Sedentary: |
no additional calories |
(major couch potato watching boring TV shows) |
Low: |
100 additional calories |
(occasional stairs or walking short distances) |
Medium: |
200 additional calories |
(stairs or walking frequently) |
High: |
400 additional calories |
(a lot of lifting, walking, etc.) |
Very High: |
800 additional calories |
(construction or hard labor) |
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