A 143-lb woman regularly exercises on a treadmill at a speed of 5.5 mph and a 2% elevation. How much weight will she lose weekly if she exercises for 45 minutes per session, three sessions per week?

Question

High School

Answer :

SloanGarrett45 SloanGarrett45 · Answer 1 · 2024-01-05T07:11:20-05:00

The woman will lose approximately 0.234 pounds per week through her treadmill workouts.

To calculate the weight the woman will lose weekly, we need to determine the total calories she burns during each workout session.

First, let's calculate the calories burned per minute.

To do this, we'll use the formula:

Calories burned = (MET * weight in kg * time in hours).

The MET value for treadmill exercise at 5.5 mph and 2% elevation is approximately 8.4.

Weight in kg = 143 lbs / 2.2 = 65 kg

Calories burned per minute = 8.4 * 65 kg * (45 minutes / 60 minutes) = 273 Calories per session

To calculate the weight loss per week, multiply the calories burned per session by the number of sessions per week:

273 Calories/session * 3 sessions/week = 819 Calories/week

There are approximately 3500 calories in a pound of body weight.

So to convert the calories burned to weight lost, divide the total calories burned by 3500:

819 Calories/week / 3500 Calories/pound = 0.234 pounds/week