What is Body Mass Index (BMI) ?
(Fundamentals)
Every person has an ideal and recommended BMI, which is dependent on their height and weight measurements.
ECTOMORPH: Lean or skinny with a generally faster metabolism.
ENDOMORPH: Stocky, lots of muscle and/or body fat. Slow metabolism.
MESOMORPH: Muscular and athletic with efficient metabolism allowing them to lose or gain weight quickly (remember that muscle is considerably heavier than fat).
How to Calculate your BMI?
A 100-kilogram person who is 2.5 metres tall will have a lower Body Mass Index than a person of the same weight but who is only 1.5 metres tall. The BMI measurement is only accurate for adult men and women who have reached their maximum height. A higher Body Mass Index usually indicates that you are overweight or obese. However, this is not always the case, as muscle mass is denser than body fat. On average, the density of fat is 0.9g/ml, whereas the density of muscle is 1.1 g/ml.
To calculate your BMI
1) Find your weight in Kilograms
2) Measure your height in metres
3) Calculate the square of your height
4) Divide your weight by the value you calculated in 3).
For example:
1) 100 Kg 2) 2.5 metres 3) 2.5 X 2.5 = 6.25 4) 100 / 6.25 = 16
2) 100 Kg 2) 1.5 metres 3) 1.5 X 1.5 = 2.25 4) 100 / 2.25 = 44.4