Final Mathematical Calculations - Essay Example

For Women: BMR = 655 + (4.35 x weight in pounds) + (4.7 x height in inches) - (4.7 x age in years).

For Men: BMR = 66 + (6.23 x weight in pounds) + (12.7 x height in inches) - (6.8 x age in years). 

As a women

BMR= 655+(4.35*165)+(4.7*62)- (4.7*37)

BMR= (655+717.75)+291.4-173.9

BMR=1372.75+291.4-173.9

BMR=1490.25.

Next, calculate your total kcal needs for the day. To do this, multiply your BMR (your answer from the previous question) by an activity factor that you select below and a stress factor (SF) from the chart below. Unless you are recovering from surgery or a major injury, assume that your stress factor is one.

Show your work: 1490.25 x 1.375=2049 per day calories; 1490.25 x1.375 x1.2

BMR= (10 x weight in kg) + (6.25 x height in cm) – (5 x Age in years) + 5 =

BMR= (10 x weight in kg) + (6.25 x height in cm) – (5 x Age in years) – 161 =.

Then, multiply your calculated BMR from above by the activity factor and stress factor you selected in question #3. This will indicate your kcal needs for the day using the Mifflin-St. Jeor equation. Show your work (remember to use the activity factor). 

1.375 x 1388.3 x 1.2

Your caloric needs using Mifflin-St. Jeor: 1388.3X 1.375 x 1.2= 2290.2.

I am not surprised at the figures resulting from calculated kcal needs since they are around the recommended needs for my figure which is 2,000kcal. However, I am slightly above the recommended kcal needs because of my size (weight and height) which indicates that I am overweight (obese). This indicates that I need more calories than an average woman. As my age increases my kcal needs will increase because of the increase in the number of activities; usually needing more calories.

The caloric needs calculate by using Mifflin-St. Jeor and Harris-Benedict Equation are different because they have a difference of slightly more than 100 calories (168.71).