1. What is the Treadmill MET Equation?

The MET (Metabolic Equivalent of Task) equation estimates energy expenditure during treadmill walking. It accounts for both walking speed and incline grade to provide a standardized measure of exercise intensity.

2. How Does the Calculator Work?

The calculator uses the treadmill MET equation:

Where:

• \( Speed \) — Walking speed in miles per hour (mph)
• \( Grade \) — Treadmill incline as percentage grade

Explanation: The equation combines baseline metabolic rate (2.0 METs) with components for horizontal movement (0.2 × speed) and vertical work against gravity (0.9 × speed × grade).

3. Importance of MET Calculation

Details: MET values help quantify exercise intensity, guide exercise prescription, and allow comparison of energy expenditure across different activities.

4. Using the Calculator

Tips: Enter speed in mph (typical walking speeds range 2.0-4.5 mph) and grade as percentage (0% = flat, 10% = steep incline). Both values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What is a MET?
A: 1 MET = resting metabolic rate (~3.5 ml O₂/kg/min). 4 METs means 4× resting energy expenditure.

Q2: What are typical MET values for walking?
A: Flat walking: 2-5 METs depending on speed. Incline walking: 5-8 METs or more.

Q3: How accurate is this equation?
A: Valid for walking speeds 1.9-4.5 mph and grades 0-15%. Less accurate for running.

Q4: Can I use this for calorie estimation?
A: Yes, combine with weight and duration: Calories = METs × weight(kg) × hours.

Q5: Why different coefficients for speed and grade?
A: Vertical work (grade) requires more energy per unit speed than horizontal movement.