Please remember to consult a medical expert if you want to gain or lose a lot of weight. If you are looking to gain or lose weight, you can also use this number as a point to eat more or less then, respectively. Thanks to the Harris-Benedict calculator and Harris-Benedict equation, you can know the perfect amount of calories (or maintenance calories) to eat if you want to keep your body weight as it is. Keeping a healthy diet and using the Harris-Benedict calculator to keep an eye on your BMR will make it easier for you to stay in good health. The HarrisBenedict equation sprang from a study by James Arthur Harris and Francis Gano Benedict, which was published in 1919 by the Carnegie Institution for ScienceCarnegie Institution of Washington in the monograph A Biometric Study Of Basal Metabolism In Man. If you are extra active (very hard exercise/sports & a physical job): calories = BMR × 1.9.įor more on BMR, check out the Mifflin St Jeor equation calculator and the Katch-McArdle formula calculations.Very active (hard exercise/sports 6-7 days a week): calories = BMR × 1.725 and.6 However, in spite of their widespread use, previous studies have found that prediction equations were inaccurate in various clinical settings. Moderately active (moderate exercise/sports 3-5 days/week): calories = BMR × 1.55 The most widely used prediction equation is the Harris-Benedict Equation (HBE), which was developed in 1918 as a simple, easy-to-use and universally available method for calculation of BMR.Lightly active (light exercise/sports 1-3 days/week): calories = BMR × 1.375.Sedentary (little or no exercise): calories = BMR × 1.2.Weight also was closely correlated with REE (R2 = 0.56): REE = 15.1 x weight + 371.To determine your TDEE (Total Daily Energy Expenditure), multiply your BMR by the appropriate activity factor, as follows: Fat-free mass (FFM) was the best single predictor of REE (R2 = 0.64): REE = 19.7 x FFM + 413. The Harris-Benedict Equations derived in 1919 overestimated measured REE by 5% (p less than 0.01). The BMR formula uses the variables of height, weight, age and gender to calculate the Basal Metabolic Rate (BMR). The inclusion of relative body weight and body-weight distribution did not significantly improve the predictive value of these equations. Simplification of this formula and separation by sex did not affect its predictive value: REE (males) = 10 x weight (kg) + 6.25 x height (cm) - 5 x age (y) + 5 REE (females) = 10 x weight (kg) + 6.25 x height (cm) - 5 x age (y) - 161. Multiple-regression analyses were employed to drive relationships between REE and weight, height, and age for both men and women (R2 = 0.71): REE = 9.99 x weight + 6.25 x height - 4.92 x age + 166 x sex (males, 1 females, 0) - 161. Normal-weight (n = 264) and obese (n = 234) individuals were studied and REE was measured by indirect calorimetry. Digestion increases your basal metabolic rate by 5-10. This modification allows us to account for the calories burned during food digestion due to the so-called thermic effect of food. A predictive equation for resting energy expenditure (REE) was derived from data from 498 healthy subjects, including females (n = 247) and males (n = 251), aged 19-78 y (45 +/- 14 y, mean +/- SD). Calculations are based on the Harris-Benedict formula (see the Harris-Benedict calculator).
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