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Kilojoules Burned Equation:
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The Kilojoules Burned Equation estimates energy expenditure during physical activity for children. It calculates kilojoules burned based on MET (Metabolic Equivalent of Task), weight, and time of activity.
The calculator uses the equation:
Where:
Explanation: The equation accounts for the intensity of activity (MET), body weight, and duration to estimate energy expenditure in kilojoules.
Details: Calculating energy expenditure helps in understanding the caloric cost of physical activities, which is important for weight management, fitness planning, and ensuring appropriate energy balance for growing children.
Tips: Enter MET value (unitless), weight in kilograms, and time in hours. All values must be valid (MET > 0, weight > 0, time > 0).
Q1: What is MET?
A: MET (Metabolic Equivalent of Task) is a unit that represents the energy cost of physical activities. 1 MET is defined as the energy expenditure while sitting at rest.
Q2: How accurate is this calculation?
A: This provides an estimate based on average values. Individual energy expenditure may vary based on factors like fitness level, body composition, and exercise intensity.
Q3: Why use 4.184 as the conversion factor?
A: 4.184 is the conversion factor from kilocalories to kilojoules (1 kcal = 4.184 kJ), as the MET values are typically based on kilocalorie expenditure.
Q4: Can this calculator be used for adults?
A: While the basic equation works for adults, MET values and energy expenditure patterns may differ between children and adults.
Q5: Where can I find MET values for different activities?
A: MET values are available in compendiums of physical activities published by health organizations and research institutions.