Question

Judy has started fast walking for half an hour each day in an effort to lose weight. Judy currently

weighs 100 kg. She walks expending about 0.1 kcal per kg of body weight per minute. For a
woman, we multiply the body weight in kg by 0.9 kcal/kg body weight/hour t calculate her
BMR. What is Judy's daily energy expenditure (ignore TEF due to its small portion)?
A.345
OB.690
OC.2460
O D. 100

Answer 1

To calculate Judy's daily energy expenditure, we need to consider both her Basal Metabolic Rate (BMR) and the energy expended during her half-hour fast walking.

Step 1: Calculate Judy's BMR.

BMR = Body weight (kg) * 0.9 kcal/kg body weight/hour

BMR = 100 kg * 0.9 kcal/kg body weight/hour

BMR = 90 kcal/hour

Step 2: Calculate the energy expended during fast walking.

Energy expended during walking = Energy expenditure per minute * Number of minutes walked

Energy expenditure during walking = 0.1 kcal/kg/minute * 100 kg * 30 minutes

Energy expenditure during walking = 300 kcal

Step 3: Calculate the total daily energy expenditure.

Total daily energy expenditure = BMR + Energy expended during walking

Total daily energy expenditure = 90 kcal/hour + 300 kcal

Total daily energy expenditure = 390 kcal

The closest option to Judy's daily energy expenditure is:

A. 345 (kcal)

Step-by-step explanation: