subject: BMI calculation [print this page] BMI calculation BMI calculation
BMI is defined as "a measure of overweight or obesity is determined by dividing body weight (in kilograms) by height (in meters) squared." The body mass index (BMI) is a mathematical formula widely accepted that doctors and nutritionists have used for years to determine if a person falls within the parameters of a normal level of health of body fat . Since these calculators now have such a presence online everywhere, millions of people to diagnose their own levels of fat using this simple tool. How does a BMI calculator? Is it really? Using a mathematical equation to calculate body fat is not a new concept. Obesity calculator first, the Quetelet index of obesity in the 19 th century. In the 1980's, doctors began using the formula as an alternative to the maps can deceive those who were in vogue at that time. The U.S. government is the index in the center of attention in the 90's as part of its campaign against obesity. This does not mean anything if you do not even know what the ideal number. In the above example, a BMI of 24.8 is only within the healthy range. Range of 25-30 is considered overweight. More than 30 are considered obese. The lower end of the scale, anything below 18.5 is considered underweight. If you do not want to do the math yourself, there are many online calculators that you can use. Just enter your weight in a box and your size in the second and click "Calculate". There have been reports of false readings. It is rare, but if your reading seems wildly wrong, just do the math to check manually. There are some drawbacks to the bmi calculation you should consider. The elderly and others who have lost muscle mass can get a false reading, because half the muscle mass is considered in the equation. Athletes can have the misconception that they are overweight when they actually have a greater amount of lean tissue versus fatty tissue. The test is performed with an instrument called a skinfold caliper. The jaws of the pliers pinching a fold of skin and fat and measure the skinfold thickness in millimeters. There are many different brands of calipers on the market. Lange, Harpenden calipers and Slim computer Skyndex Guide are among the most common and precise, even if the cost is quite high outside Slim Guide, these range anywhere from 150.00 $ 450.00 two U.S. dollars. Another cheaper skinfold caliper called Accu-Measure. Unlike others, the Accu-Measure a bracket that has been specifically designed for personal self-test. Accu-measure is certainly a good test if you do not have access to any form of testing. Although the margin of error is greater than getting your fat measured by a qualified auditor, it is self-test at least tell you if your body fat percentage has decreased or not, because any decrease in the thickness shows skinfold you lose body fat. Based on estimates of what it means to fall into the upper end of overweight, but only because they fall within the range of numbers of good health does not mean you have a problem. For example, BMI can not distinguish between muscle and fat, and if you have a BMI over 25, but has plenty of muscle and little fat, are not likely to be overweight or obese. BMI calculator for women is not very accurate to determine the percentage of the total removal of fat in the body, and devised a simple way to determine body fat in large groups of people. We are all different shapes and sizes so make sure you use it for a quick reference guide. If you want a more accurate determination of your health, contact your doctor. Many gyms offer a skin test times to calculate body fat more accurately.