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This table is based upon a dog's Resting Energy Requirements or RER. The RER is the basic amount of energy that a dog would use in a day while remaining at rest. The formula to calculate RER for animals between 2 and 45 kg (5 - 99 pounds) is: RER in kcal/day = 30(body weight in kilograms) + 70. Any activity or variable other than rest will require an increase in energy (RER) and an increase in calories to meet the energy needs. Realize that these numbers are not a reflection of maintenance calories but of resting energy levels.
Units of Energy -- Calories. A calorie is a unit of measurement that describes energy. When you exercise you burn calories or expend energy. The more calories you burn the harder you have exercised. In terms of body weight, 1 pound of fat is equivalent to 3,500 calories.The stored energy in your body fat can provide a lot of calories during your exercise routines.uring the classes, you may perform calisthenic-type moves, use the water resistance while exercising with floaties, tread water, walk or jog -- all in waist-or neck-deep water. Although the calories burned vary, you may burn more than 200 calories per hour in an aquafit class.