Energy Input and Output (page 2)
The following information is for a person weighing 150 pounds (68 kg). All reference to the person will be made as "the test subject." Energy input and output are determined for a 24-hour test period.
Energy input is equal to the number of food Calories in the food eaten. Use a calorie counter chart found in a nutrition text to determine the food Calories eaten by the test subject in a 24-hour test period. The number of Calories in the food eaten by the test subject was determined to be as follows:
Energy input = 5,000 Calories
calorie Expenditure Chart for the Test Subject
Specific Dynamic Act/on (SDA) for Test Subject
SDA = 10% of energy input (Calories eaten) = 10% &215; 5,000 Calories = 500 Calories
Basal Metabolism for Test Subject
Energy stored is calculated as follows:
energy stored = energy input – energy output
A positive (+) energy stored calculation indicates a gain of body fat, and thus a gain in body weight. A negative stored energy indicates that energy calories were taken from body fat resulting in a loss of weight.
energy stored = 5,000 C – (2,315 C + 500C + 1,632 C) = + 553 Calories
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