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FITNESS CALCULATOR:

Body Mass Index

Body Mass Index, often referred to as BMI is calculated from your height and weight. It can be used as an inexpensive method of estimating body fat.

Calculating Your BMI

You can calculate your BMI with this formula: weight (in pounds) / [height (in inches) x height (in inches)] x 703 or use the calculator below:

The Centers for Disease Control and Prevention have established guidelines to interpret BMIs. It is important to note:  that BMI can be influenced by heavy muscling, that women generally have a higher percent body fat for a given BMI than do men, that the elderly tend to have more fat than do younger individuals, and that it is interpreted using different guidelines in children.

BMISTATUS

Less that 18.5

Underweight

18.5 - 24.9

Normal Weight

25.0 - 29.9

Overweight

More than 30.0

Obese

BMI and Your Health

People with very low or very high BMIs tend to have the greatest health risks but it is only one factor in determining risk.  For example, smoking cigarettes and being sedentary will raise your risk – even if your BMI is in the normal range.

By the same token EXERCISE lowers your risk of disease , even if overweight or obese.  

Getting regular physical activity is the one of the most important modifications you can make to your lifestyle, and in doing so you are also more likely to be able to maintain a healthier weight.

References:

http://www.cdc.gov

Pedersen BK, Saltin B.  Evidence for prescribing exercise as therapy in chronic disease.  Scand J Med Sci Sports. 2006 Feb;16 Suppl 1:3-63. Review.