Kilojoules Burned During Exercise Calculator

Kilojoules Burned Equation:

\[ kJ = MET \times Weight \times Time \times \frac{4.184}{60} \]

Kilojoules Burned (kJ):

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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 energy consumption during various exercises and activities.

2. How Does the Calculator Work?

The calculator uses the Kilojoules Burned equation:

\[ kJ = MET \times Weight \times Time \times \frac{4.184}{60} \]

Where:

\( MET \) — Metabolic Equivalent of Task (unitless)
\( Weight \) — Body weight in kilograms (kg)
\( Time \) — Duration of activity in minutes (min)
\( 4.184 \) — Conversion factor from kcal to kJ
\( 60 \) — Conversion factor from hours to minutes

Explanation: The equation calculates energy expenditure by multiplying MET value (intensity of activity), body weight, time duration, and conversion factors to obtain results in kilojoules.

3. Importance of Energy Expenditure Calculation

Details: Accurate energy expenditure estimation is crucial for weight management, exercise programming, nutritional planning, and understanding the metabolic cost of various activities.

4. Using the Calculator

Tips: Enter MET value (typically 1.0-12.0), weight in kilograms, and time in minutes. All values must be valid positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What are MET values?
A: MET values represent the intensity of physical activities. 1 MET equals resting energy expenditure. Higher MET values indicate more intense activities.

Q2: How accurate is this calculation?
A: The calculation provides a reasonable estimate but individual variations in metabolism, fitness level, and body composition can affect actual energy expenditure.

Q3: Where can I find MET values for different activities?
A: MET values are available in compendiums of physical activities and various health/fitness resources. Common activities have standardized MET values.

Q4: Can this be used for weight loss planning?
A: Yes, it's useful for estimating calorie/energy expenditure to create appropriate exercise and nutrition plans for weight management.

Q5: Why convert to kilojoules instead of calories?
A: Kilojoules are the SI unit for energy. The conversion allows for standardized measurement, though results can be converted to calories if needed (1 kcal = 4.184 kJ).