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Physical Activity Formula:
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The Physical Activity Calculator estimates the total energy expenditure of physical activities using the MET (Metabolic Equivalent of Task) system. It calculates the product of activity intensity and duration to provide a measure of total physical activity.
The calculator uses the MET formula:
Where:
Explanation: MET is a unit that estimates the amount of energy used by the body during physical activity, compared to resting metabolism. One MET is defined as the energy cost of sitting quietly.
Details: Calculating MET-minutes helps quantify physical activity levels, track exercise progress, and compare different activities' energy expenditure. It's useful for fitness planning and health monitoring.
Tips: Enter the MET value of your activity (common values range from 2-10+ METs) and the duration in minutes. All values must be valid (intensity > 0, duration > 0).
Q1: What are typical MET values for common activities?
A: Walking (3-4 METs), running (8-12 METs), cycling (6-10 METs), swimming (5-8 METs). Sedentary activities are typically 1-2 METs.
Q2: How can I use MET calculations for fitness goals?
A: You can track weekly MET-minute totals to ensure you meet physical activity guidelines (typically 500-1000 MET-minutes per week for health benefits).
Q3: Are MET values the same for everyone?
A: MET values are standardized estimates. Actual energy expenditure may vary based on individual factors like weight, fitness level, and efficiency of movement.
Q4: How accurate are MET calculations?
A: MET calculations provide estimates rather than precise measurements. They're useful for general tracking but may not account for individual variations.
Q5: Can I convert MET-minutes to calories burned?
A: Yes, approximately: Calories = METs × weight in kg × duration in hours. This requires knowing your body weight for accurate conversion.