Question

What are anna's total daily energy needs based on her desired body weight and level of physical activity that will allow her to maintain her precollege body weight?

Answer 1

Answer:

Anna's total daily energy needs based, on her desired body weight and level of physical activity that will allow her to maintain her precollege body weight is 1120.8 kcal/ day

Explanation:

The Basal Metabolic Rate or BMR is a measure of a person's ability to process energy per day. Essentially, BMR looks at how much energy a body may use in a 24 hour period by measuring the needed calorie intake.

BMR is measured via the equation:

• (Imperial) BMR = (4.536 × weight in pounds) + (15.88 × height in inches) − (5 × age) − 161;

This is the Mifflin-St Jeor formula, alternatively, the very similar Harris-Benedict Equation can be used; here, age, weight and height are the inputs required for the calculation. However, for this question we'll use the provided equation:

Anna's current weight= 121+15 lbs= 61.69 kg

...previous weight= 54.80 kg

Formula for women:

BMR (kcal/ day)= body weight in kg × 0.9 kcal/kg/ hour × 24 hours/day

         At her current weight = 61.69 kg× 0.9 kcal/kg/ hour × 24 hours/day

                                                =1332.5 kcal/ day

At her pre-college weight= 54.89 kg× 0.9 kcal/kg/ hour × 24 hours/day

                                                =1120.8 kcal/ day

And going further, it may be concluded that Anna needs to eat 211.7 less calories to attain her previous weight...