Body Mass Index

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Body Mass Index For Measurement

Body Mass Index Measurement is also known as Quetelet Index measurement. Body Mass Index Measurement is popularly known as BMI. The BMI is a statistically measured weight of a person in accordance to that person’s height. Lambert Adolphe Jacques Quételet, a belgian learned person between the period 1830 to 1850 invented this measurement technique. It was invented during the developing course of “Social physic”.

The formula of measuring the body mass index is a person's body weight divided up by the square of that person’s height. This formula has been used universally in cases of medicine production. Like a unit of measure has been counted as kg/m2. there are many other formulas as well to count the Body Mass Index Measurement or BMI. Like according to International System of Units the BMI can be counted as BMI= weight (kg)/ height2 (m2). As per US customary units it can be counted as BMI= 703* [weight(1b)/ height2 (in2)]. The Imperial units uses the formula as BMI=6.35* [weight(stone)/ height2 (m2)].

There is BMI chart from which the Body Mass Index Measurement can also be done. The increasing use of BMI took place between the period of 1950s and 1960s. During that time, obesity became a perceptible issue that has been experienced by the flourishing Western society. Through the Body Mass Index Measurement process it became easier to give a numeric measure to "fatness" or "thinness" of a person. It became much easier for the medicine practitioners to detect the problems related to "fatness" or "thinness". The Body Mass Index Measurement between 18.5 to 25 bespeaks the optimal weight of a person. If the BMI of a person points lower than 18.5, it depicts that person is underweight. It designates overweight when the BMI points more than 25. Below 17.5 BMI portrays anorexia or disorder related to that. Above 30 BMI rate depicts obese in the person.

On an usual manner the BMI is properly related  to weight. As the body weight increases to a certain degree the BMI will also increase to that certain degree. The BMI is also related to height on a particular body shape and density. BMI Prime is a alteration of the BMI system. It has been considered as the ratio between the actual BMI and the upper limit BMI, which is 25. BMI Prime has also been considered as the pure one as it depicts the ratio of two bifurcated BMI values and provides dimensionless number without any physical units. The measurement comes this way, a person with BMI Prime < 0.74 has been considered as underweight.

The category of the Body Mass Index Measurement includes:

• Starvation – BMI range (less than 16.5), BMI prime (less than 0.60)
• Underweight -- BMI range (from 16.5 to 18.5), BMI prime (from 0.6 to 0.74)
• Normal -- BMI range (from 18.5 to 25), BMI prime (from 0.74 to 1.0)
• Overweight -- BMI range (from 25 to 30), BMI prime (from 1.0 to 1.2)
• Obese -- BMI range (from 30 to 35), BMI prime (from 1.2 to 1.4)
• Clinically Obese -- BMI range (from 35 to 40), BMI prime (from 1.4 to 1.6)
• Morbidly Obese -- BMI range (greater than 40), BMI prime (greater than 1.6

The BMI counting formula has been used differently for children. It is measured in the like way for as adults but equated to the distinctive values of the like age for other children. Last but not the least, like other measurement techniques, the BMI measurement do have some limitations.

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