How to Calculate Estimating Calories by Heart Rate
The food calorie is a non-standard unit of energy that's only used for measuring the energy in food. Calorie expenditure generally has a strong correlation with heart rate when the heart rate is 90 to 150 beats per minute. This calculation will require you to provide at least your age, weight and gender. The estimate of your calorie expenditure will be more accurate if you also provide your V02 max value.
Instructions
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Determine the maximum rate at which your body can consume oxygen. This value is known as your VO2 and may be obtained by breathing into a mask as you exercise at your maximum effort. A sports medicine facility can measure your V02 accurately and you may also estimate it with the equation (D12 -- 505)/45, where D12 is the maximum distance you're able to run in 12 minutes.
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2
Calculate your calorie expenditure estimate with your VO2 max value if you're male. This is given by the equation X = (-59.3954 + (-36.3781 + 0.271 x age + 0.394 x weight + 0.404 x VO2 + 0.634 x heart rate)) x time / 4.184. Provide your age in years, weight in kilograms, VO2 max in liters per minute, heart rate in beats per minute. The time variable in this equation is the duration of the exercise in minutes.
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Estimate your calorie expenditure estimate with your VO2 max value if you're female. This is given by the equation X = (-59.3954 + (0.274 x age + 0.103 x weight + 0.380 x VO2 max + 0.450 x heart rate)) x time / 4.184.
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Determine the estimate of your calorie expenditure without your VO2 max value if you're male. This is given by the equation X = (-55.0969 + 0.6309 x heart rate + 0.1988 x weight + 0.2017 x age) x time / 4.184.
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Establish the estimate of your calorie expenditure without your VO2 max value if you're female. This is given by the equation X = (-20.4022 + 0.4472 x heart rate - 0.1263 x weight + 0.074 x age) x time / 4.184.
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