Health - Physical Fitness - Diet - Weight Control
Solve for Female Basal Metabolic Rate BMR
Harris-Benedict Procedure
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basal metabolic rate for men | |
basal metabolic rate for women |
basal metabolic rate for males and females |
Lean body mass | |
Percent Body Fat |
body mass index | |
weight | |
height |
BMR | = | basal metabolic rate in calories per day |
BMI | = | body mass index |
TDEE | = | total daily energy expenditure |
body fat percentage | = | percent |
weight | = | kilograms |
height | = | centimeters |
age | = | years |
The Basal Metabolic Rate (BMR) is the number of calories your body requires to sustain basic physiological operations at rest, including breathing, circulation, cell production, nutrient absorption, and maintaining body temperature. Understanding BMR is crucial for anyone looking to manage their weight effectively, engage in fitness, or maintain a healthy lifestyle. The Harris-Benedict Equation, revised in 1984, provides a formula to estimate an individual's BMR, with specific variations for females and males due to differences in body composition and metabolism.
Initially developed in 1919 by James Arthur Harris and Francis Gano Benedict, the Harris-Benedict Equation has undergone revisions to improve accuracy. It calculates BMR by considering age, weight, and height. The equation acknowledges the generally higher body fat percentage and differences in lean muscle mass in its calculations for women.
For females, the Harris-Benedict BMR formula is as follows:
BMR = 655 + (9.6 x weight in kg) + (1.8 x height in cm) - (4.7 x age in years)
Solving for BMR using this equation requires you to first convert your weight from pounds to kilograms (1 kg = 2.20462 lbs) and your height from inches to centimeters (1 inch = 2.54 cm). With your values converted, you can substitute them with your age into the equation to calculate your BMR.
Consider a 30-year-old woman 5 feet 5 inches tall (165 cm) and weighs 140 pounds (63.5 kg).
Weight in kg: 140 lbs / 2.20462 = 63.5 kg
Height in cm: 65 inches x 2.54 = 165 cm
Age: 30 years
So, her BMR = 655 + (9.6 x 63.5) + (1.8 x 165) - (4.7 x 30) = 655 + 610.2 + 297 - 141 = 1421.2 calories/day
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