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bmi index

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BELLY-FAT.NET :: BMI index

The Body Mass Index BMI is an adaptation of simple weighing which attempts to take into account the subject's general body size by dividing the weight by the height squared (the units for BMI are kg/m2). The BMI index still ignores many factors which can affect the results, and is generally not accurate for many individuals such as kids (see information below), active sportsmen, gravid Ladies and nursing mothers. The BMI index is usable only for comon population. However just fill in bmi calculator your high and weight, to know yours..



                 cm      kilograms

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BMI range
less than 18,5
18,5 - 24,9
25 - 29,9
30 - 34,9
35 - 39,9
40 and more
Category
Underweight
Normal
Overweight
Obese
Clinically Obese
Morbidly Obese
Health hazard
high
minimal
middle
1. level high
2. level high
highest

Body mass index (BMI) or Quetelet Index is a statistical measure of the weight of a person scaled according to height. It was invented between 1830 and 1850 by the Belgian polymath, Adolphe Quetelet during the course of developing "social physics".

The BMI is meant to broadly categorise populations for purely statistical purposes. As noted, its accuracy in relation to actual levels of body fat is easily distorted by such factors as fitness level, muscle mass, bone structure, gender, and ethnicity. People who are mesomorphic tend to have higher BMI numbers than people who are endomorphic, because they have greater bone mass and greater muscle mass, respectively, than do endomorphic individuals.Similarly, an ectomorphic individual could conceivably receive an unhealthily low reading, when in fact their body type makes them naturally thin no matter what they eat.

BMI is used differently for children. (up to 20years) It is calculated the same way as for adults, but then compared to typical values for other children of the same age. Instead of set thresholds for underweight and overweight, then, the BMI percentile allows comparison with children of the same gender and age. A BMI that is less than the 5th percentile is considered underweight and above the 95th percentile is considered overweight. Children with a BMI between the 85th and 95th percentile are considered to be at risk of becoming overweight.To see the graphic curve for boys or girls just follow the right side of this page.

BMI for age percentiles
at or over the 95th
between the 85th & 95th
between 15th & 85th
between 5th & 15th
under the 5th precentile
Category
Overweight
at risk for being overweight
probably healthy weight
possibly risky underweight
underweight
Health hazard
high
middle
minimal
high
highest

For Asians, the new cut-off BMI index for obesity is 27.5 compared with the traditional WHO figure of 30. An Asian adult with a BMI of 23 or greater is now considered overweight and the ideal normal range is 18.5-22.9.