85 Lab Activity 4.3: Application of the Energy Balance Equation Name: KBlhe Faii

Question

85 Lab Activity 4.3: Application of the Energy Balance Equation Name: KBlhe Faiio Purposes: To learn bow to: 1) calculate TDEB; and 2) use the energy balance equation to determine optimal caloric deficit for safe and successful weight loss. Reminder: When math is involved, be sure to: 1) show all mathematical work; 2) carry out the answers of each step to the fourth decimal place; 3) include the appropriate units of measurement in the final answer; and 4) place a box around the final answer of each question. Instructions: Scenario: Henry is a 45-year-old male, who weighs 220 pounds and is 6 foot and 2 inches tal. Analysis of his most recent 3-day dietary intake reveals that he consumes approximately 3,500 Calories per day. He cunrently walks 4 miles (on level ground) in an hour (at a pace of 4 mpb) most, if not all, days of the week.

Explanation / Answer

Question 2:

How did I calculate TDEE is here:
Step 1: To calculate BMR (Basal Metabolic Rate)
Data given is, Weight = 220 pounds = 99.79 kg
Height = 6 ft 2 in = 187.96 cm
Age = 45 years
Sex = Male
Using the formula for calculating BMR for a male and substituting with the data;
BMR (male) = 66 + (13.7 x weight in kg) + (5 x height in cm) - (6.8 x age in yrs)
BMR = 66 + (13.7 x 99.79 kg) + (5 x 187.96 cm) - (6.8 x 45)
BMR = 66 + 1367.123 + 939.8 - 306
BMR = 2066.923 cal/day

Step 2:
TDEE = BMR x Activity Factor
Referring to the Activity Factor Table, Henry can be placed under Lightly Active person, so his Activity Factor would be = 1.375
TDEE = 2066.923 x 1.375
TDEE = 2842.019

Question 3:
Henry is in the mode of Weight Gain.
As TDEI > TDEE

Question 5:
Activity factor is not changing for Henry. In order to lose 2 pounds per week, (0.9 kg per week)
For getting the TDEI, let us calculate his BMI (Body Mass Index) first.
BMI = Weight in kg / (Height in m)2
Weight = 99.79 kg; Height = 1.88 m
BMI = 99.79 / (1.88)2
BMI = 28 (decimal rounded off)

So, the BMI > 25
So, Henry needs to decrease intake of 100 to 500 cal / day.
This seems like a reasonable TDEI, since he needs to adjust approximately 100 to 500 calories in comparison to 3,500 calories' intake that he is consuming per day.
If this is seeming difficult for him, he needs to indulge in sports or other physical activity.

Without Diet and Activity Modification TDEI 3500 cal/day TDEE 2842.019 cal/day Difference (TDEI - TDEE) 657.981

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