1. What is the Calorie Expenditure Equation?

The calorie expenditure equation estimates calories burned during physical activity based on MET (Metabolic Equivalent of Task) value, body weight, and exercise duration. It provides a standardized way to compare energy expenditure across different activities.

2. How Does the Calculator Work?

The calculator uses the calorie expenditure equation:

Where:

• \( MET \) — Metabolic Equivalent of Task (activity intensity)
• \( weight\_kg \) — Body weight in kilograms
• \( minutes \) — Duration of activity in minutes

Explanation: The equation accounts for the energy cost of physical activity relative to resting metabolism, scaled by body weight and duration.

3. Importance of MET Values

Details: MET values represent the ratio of working metabolic rate to resting metabolic rate. One MET is defined as 1 kcal/kg/hour and is roughly equivalent to the energy cost of sitting quietly.

4. Using the Calculator

Tips: Enter MET value (check exercise databases), your weight in kg, and duration in minutes. All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: Where can I find MET values for different exercises?
A: The Compendium of Physical Activities provides comprehensive MET values for hundreds of activities.

Q2: How accurate is this calculation?
A: It provides a reasonable estimate for most people, but individual variations in metabolism can affect actual calorie expenditure.

Q3: Does this account for afterburn effect?
A: No, this calculates only the calories burned during the activity itself. Some intense exercises may increase calorie burn for hours afterward.

Q4: Should I use my current weight or goal weight?
A: Always use your current weight for most accurate calculations.

Q5: Can I use this for weight loss planning?
A: Yes, but remember that dietary changes typically have a larger impact on weight loss than exercise alone.