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In this activity, you will estimate your average daily energy needs.

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We measure energy in calories.

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To help RJ figure out his energy needs, you have to calculate his baseline calorie need,

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also called basal metabolic rate or BMR.

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BMR is estimated based on gender, age, height, and weight.

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You will work from the baseline energy needs handout and the total energy needs handout,

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which can be found in the educator's guide.

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The BMR value for men, well, in this case, RJ, can be calculated using the following equation,

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where W is the weight in kilograms, H is the height in centimeters, and A is RJ's age.

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The BMR equation for women is different than men, but it's also based on weight, height, and age.

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By substituting RJ's weight, height, and age into the BMR equation,

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the students estimated RJ's BMR value to be 1,645.

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This is his baseline energy need.

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Now, if we factor in his exercise level, the baseline value needs to be adjusted.

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Because RJ is trying out for the cross-country team, his exercise level should be high,

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meaning he is using a lot of energy.

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From the total energy needs handout, we can adjust RJ's BMR value by multiplying 1,645 and 1.9.

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The exercise level adjustments are found in the handout.

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It looks like the total estimated energy needs for RJ is 3,125 calories per day.

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Good luck to you, RJ!