1. What Is The Kilojoules Burned Equation?

The Kilojoules Burned Equation estimates energy expenditure during physical activity using MET (Metabolic Equivalent of Task), weight, and time. It provides a quantitative measure of kilojoules burned, which is useful for fitness and weight management tracking.

2. How Does The Calculator Work?

The calculator uses the equation:

Where:

• \( MET \) — Metabolic Equivalent of Task (unitless)
• \( Weight \) — Body weight in kilograms (kg)
• \( Time \) — Duration of activity in hours
• \( 4.184 \) — Conversion factor to kilojoules

Explanation: The equation multiplies MET value (intensity of activity) by weight and time, then converts to kilojoules using the standard conversion factor.

3. Importance Of Energy Expenditure Calculation

Details: Calculating energy expenditure helps in designing exercise programs, managing weight, and understanding the caloric cost of different activities for better health and fitness planning.

4. Using The Calculator

Tips: Enter MET value (consult MET tables for specific activities), weight in kg, and time in hours. All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What is MET and how is it determined?
A: MET represents the intensity of physical activity. 1 MET is the energy expenditure at rest. Higher MET values indicate more intense activities.

Q2: Why use 4.184 in the equation?
A: 4.184 is the conversion factor from kilocalories to kilojoules (1 kcal = 4.184 kJ), as MET values are typically based on kcal expenditure.

Q3: How accurate is this calculation?
A: It provides a reasonable estimate for general purposes, but individual variations in metabolism and efficiency can affect actual energy expenditure.

Q4: Can men use this calculator?
A: While designed for women, the same equation applies to men, though metabolic differences may cause slight variations in actual energy expenditure.

Q5: Where can I find MET values for different activities?
A: MET values are available in compendiums of physical activities and various health/fitness resources online.