![]() ![]() ![]() Developed in 1919 by James Harris and Francis Benedict, the equation has been revised over time to improve its accuracy. The Harris-Benedict Equation is a widely-used formula that calculates an individual’s Basal Metabolic Rate (BMR) and, ultimately, their Total Daily Energy Expenditure (TDEE). Additionally, individuals with more muscle mass generally have a higher BMR, as muscle burns more calories at rest than fat does. Men typically have a higher BMR than women because they have more lean muscle mass. As you age, your BMR naturally decreases due to a reduction in lean body mass and a slowdown in metabolism. To convert your height from inches to centimetres, multiply your height in inches by 2.54.įactors affecting BMR include age, sex, weight, body composition, genetic factors, and hormonal levels. To convert your weight from pounds to kilograms, divide your weight in pounds by 2.205. To calculate BMR in pounds, you can use the Harris-Benedict Equation, which has separate formulas for males and females: Each of these methods takes into account different factors and may provide slightly different results. The most common ones are the Harris-Benedict Equation, Mifflin-St Jeor Equation, and Katch-McArdle Formula. There are several methods to calculate BMR. Generally, a higher BMR indicates a faster metabolism, which means your body burns calories more efficiently. It’s important to know your BMR because it helps you understand how many calories you need to maintain, lose, or gain weight.Ī good BMR varies from person to person, depending on factors such as age, sex, weight, and body composition. In other words, BMR is the number of calories you’d burn if you did absolutely nothing all day. BMR represents the minimum number of calories your body requires to survive without any physical activity. These functions include breathing, blood circulation, maintaining body temperature, cell production, and other vital processes. doi:10.20463/ Metabolic Rate (BMR) is the amount of energy your body needs to maintain basic physiological functions while at complete rest. Non-exercise activity thermogenesis (Neat): a component of total daily energy expenditure. ![]() ![]() Harris Benedict Basal Metabolic Rate Calculator.Ĭhung N, Park MY, Kim J, et al. Indirect calorimetry: from bench to bedside. Gupta RD, Ramachandran R, Venkatesan P, Anoop S, Joseph M, Thomas N. Indirect calorimetry: history, technology, and application. Mtaweh H, Tuira L, Floh AA, Parshuram CS. Prediction of resting energy expenditure in healthy older adults: A systematic review. The centenary of the Harris-Benedict equations: How to assess energy requirements best? Recommendations from the ESPEN expert group. Examining variations of resting metabolic rate of adults: a public health perspective. McMurray RG, Soares J, Caspersen CJ, McCurdy T. Cellular metabolism and disease: what do metabolic outliers teach us? Cell. ![]()
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