The Body Mass Index is used to assess an individuals mass relative to height. (BMI = body mass/height squared). Please note that BMI has been used to determine risks of developing many common diseases, such as Type 2 diabetes, hypertension, and cardiovascular diesease (CVD). It has also been shown to consistently relate to insulin resistance, dyslipidemia, and hypertension in children. It should also be known that BMI is not an excellent predictor for a Body Fat Percentage. BMI is at +/- 5% inacurate. If you are in search for a more accurate body fat percentage, here is a list of tests and their +/- percentages according to their accuracy:
- Skinfold Analisis: +/- 3.5%. (differs with each equation)
- Bioelectrical Impedance: +/- 3.5 to 5% (differs with each equation)
- Hydrodensitometry: +/- 2.5% when performed correctly.
- Near-Infrared Interactance: +/- 5% (differs with each equation)
- Plethysmography: Air Displacement (BOD Pod): +/- 2.2% - 3.7%
- Dual-Energy X-Ray Aborptiometry: +/- 1.8%