Question

Sally is 5’5”, weighs 126 lbs, and is 20 years old.

1. What is her BMI?

2. How is her BMI classified (healthy, overweight, obese, underweight)?

3. What are her total calorie needs? (REE x activity factor x 1.1)

REE = 0.9 kcal/kg/hr                                         Light activity: 1.3-1.45 (30-45%)

                                                               Thermic effect of food (5% to 10%) (1.1)

Answer 1

Sally

Height = 5'5" in metre= 1.65 metres

Weight= 126 lbs. In kgs= 57 kgs

Age = 20 years.

Formula to calculate

1.answer.

BMI = weight in KG/ Height in ( metre )²

BMI = 57 kgs / (1.65 metres )^2.

BMI = 20.936 ~ 21   

​​​BMI = 21.

​​​​

2. Answer.

Classification of BMI.

Underweight = less than 18.5

Normal weight= 18. 5 to less than 25.

Overweight = more than 25 to less than 30

Obese= more than 30.

As the BMI of Sally is 21, her weight falls in a normal range.

That is considered the healthy weight.

3. Answer.

REE= 0.9 kcal/ kg/ hour = 0.9 kcal * 57 kgs /hr.

REE= 51.3 kcal /hour.

Total calorie needs = REE *activity factor * 1.1( TEF)

=51.3 * 1.45 AF(females ) * 1.1 ( thermic effect of food)

= 81.82~ 82 kcal/hour.