What is the body weight index formula?

Body mass formula (BMI) is a calculation designed to measure body fat. The formula is based on the height and weight of a person and is presented in ranges to classify people as underweight, normal weight, overweight and obese. There are several possible calculations for the body mass formula depending on the measurement. A Belgian mathematician developed a body weight index in the mid -18th century; Although it is still used to this day, the concept came under some criticism for not fulfilling different types of body.

Using pounds and thumbs, the pattern for body weight is to multiply the weight of the individual in pounds by 703. The result is BMI. For example, BMI for £ 150, which is 5 feet, 5 inches high (150*703)/(65*65). The BMI of this person is equal to 24.95, which would probably be rounded to 25, causing this individual overweight .x formula in metric units. The metric formula is the weight in kilograms divided by high fourRC meters. The resulting BMI falls into the same classification as the calculation using pounds and thumbs.

The

Index Chart of Body Weight marks BMI results to determine the weight of the person. BMI below 18.5 is considered underweight. Normal weight falls within 18.5 to 24.9. Overweight is considered 25 to 29.9; Any result over 30 is obese. Some graphs further decompose obese categories into class I (BMI 30 to 34.9), class II (35 to 39.9 and class III or morbid obesity (40 and higher).

Belgian mathematician and statistics named Adolphe Quetelet developed a body weight index formula in 1832; He was first known as the Quetelet index. Quetelet studied physical -characteristics that formed an average person. Measurement of hundreds of subjects found that the weight was reasonable to height but on the heightsu on the second. The formula remains unchanged and in 1972 it became known as the body weight index.

Although the BMI formula is still used as a standard body fat measurement, it is criticized. The calculation assumes an average type of body that does not take into account bone density or muscle mass. Both of these factors affect BMI and could consider fitness, muscular with overweight, because it is often in professional athletes. Some medical staff prefers other tests such as the waist circumference to determine whether the person is threatened due to his weight.