in calories and kilo calories

Answered by Archana Ghai , an ibibo Citizen, at 1:16 PM on October 06, 2008

well;
Body fat scales claim to measure body fat quickly and conveniently. These body fat scales use the Bioelectrical Impedance method to measure your body fat percentage. A low-level electrical current is passed through your body and the "impedance", or opposition to the flow of current, is measured. The result is used in conjunction with your weight and other factors to determine your body fat percentage. Unfortunately, your body's "impedance level" can be altered by many factors besides body fat. For instance, the amount of water in your body, your skin temperature and recent physical activity can all adversely affect the results.So only by following strict rules can you hope to get an accurate measurement of your body fat using these scales. The most important rules to observe in order to make a more accurate calculation of your body fat are:

* Don't eat or drink for 4 hours before the body fat measurement test.
* Don't exercise for 12 hours before the test.

Notes:

* Some studies have shown variances as high as 8 percent when using the bioelectrical impedance method even if the rules are precisely followed.
* As with skinfold calipers (see below) there are different equations used to calculate body fat from your body density. These are usually pre-programmed into the machine.
* The best body fat scales tend to made by Tanita.

Using Skinfold Calipers (Callipers) to Measure Body Fat Skinfold Measurements

Measuring body fat with a set of body fat calipers is the most cost effective way to determine fat levels. But it's important to use them correctly. For instance, either have a professional take the measurements for you or buy a set of Accumeasure calipers (callipers) and follow the measuring instructions. Accumeasure are the only calipers than allow you to test yourself and most studies have shown that they are very accurate.
Using Hydrostatic Weighing to Measure Body Fat

Hydrostatic weighing (underwater weighing) is the most accurate way to calculate body fat - that is, if you can find a hydrostatic weighing tank.

How does hydrostatic weighing calculate body fat? By using Archimedes Principle. Your examiner first calculates your body density by measuring the amount of water you displace when you immerse yourself in water. Then a formula is used to calculate body fat based on your body density. The problem is finding a facility (University, major gym or fitness center) which has a hydrostatic weighing tank!!
Table 1. Body Fat Guidelines from American Council on Exercise
Classification Women (% Fat) Men (% Fat)
Essential Fat 10-12 percent 2-4 percent
Athletes 14-20 percent 6-13 percent
Fitness 21-24 percent 14-17 percent
Acceptable 25-31 percent 18-25 percent

Answered by Kishore , an ibibo Master, at 6:15 AM on October 04, 2008

Hi Mickey, There are three main ways to calculate to tatal body fat:
1.Boieletrical impedence or Home Body Fat Scales
2.Skinfold Calipers (Callipers)
3.Hydrostatic Weighing
1. Bioelectrical Impedance method : Body fat scales claim to measure body fat quickly and conveniently. These body fat scales use the Bioelectrical Impedance method to measure your body fat percentage. A low-level electrical current is passed through your body and the "impedance", or opposition to the flow of current, is measured. The result is used in conjunction with your weight and other factors to determine your body fat percentage. Unfortunately, your body's "impedance level" can be altered by many factors besides body fat. For instance, the amount of water in your body, your skin temperature and recent physical activity can all adversely affect the results.So only by following strict rules can you hope to get an accurate measurement of your body fat using these scales. The most important rules to observe in order to make a more accurate calculation of your body fat are:
#Don't eat or drink for 4 hours before the body fat measurement test.
#Don't exercise for 12 hours before the test.
2. Body fat callipers: Measuring body fat with a set of body fat callipers is the most cost effective way to determine fat levels. But it's important to use them correctly. For instance, either has a professional take the measurements for you or buy a set of Accumeasure callipers (callipers) and follow the measuring instructions. Accumeasure are the only callipers than allow you to test yourself and most studies have shown that they are very accurate.
3. Hydrostatic weighing (underwater weighing): This is the most accurate way to calculate body fat - that is, if you can find a hydrostatic weighing tank. How does hydrostatic weighing calculate body fat? By using Archimedes Principle. Your examiner first calculates your body density by measuring the amount of water you displace when you immerse yourself in water. Then a formula is used to calculate body fat based on your body density. The problem is finding a facility (University, major gym or fitness centre) which has a hydrostatic weighing tank!!

Answered by Meera , an ibibo Master, at 10:50 PM on October 03, 2008