How Does a Handheld BMI Machine Work?

BMI, or body mass index, is often used as a measure of your fitness. A high BMI can indicate overweight or even obese. Knowing Your BMI is important in assessing your fitness. A method of fast measuring gives the handheld from Your BMI; but not always the most accurate reading. Other factors to consider, including age, gender and muscle levels.


BMI is a measure of the percentage of fat in your body. You can quickly calculate your BMI by taking your weight in kilograms, divide it by the square of your height in inches and multiplying this figure by 703, to compensate for the conversion metrics. This will give you Your BMI. According to the Center for control and prevention, a BMI of less than 18.5 is considered to be the weight of the disease, while a BMI more 25,0 is considered overweight. A BMI over 30,0 is considered obese and should be discussed with your doctor immediately.

Handheld Method

Measure BMI with hand-held machine has become very popular, because it is easy and fast. The machine sends a small electrical current through your body and measure the resistance of the current meeting. Current travel easily through water, but not to travel through the fat. The machine measures the resistance of the experience because it travels through your body; the higher the resistance, the more fat there is. It is considered more accurate than the method using only height and weight, which does not take into account other factors that can affect your fat composition, such as age, gender and muscle levels.


The accuracy of BMI handheld machines, compared with other methods, is questionable. While this method is considered more accurate than simple weight calculation is higher than, it is not as accurate as other methods, such as heavy water. The hand-held method tends to be more readily available than other methods and require less complicated equipment; However insufficient variation from machine to machine. According to an October 2007 article by Ursula g. Kyle and colleagues in the journal "Clinical Nutrition," lack of standardization exists between this machine, as well as lack of proper quality control regarding their calibration. These engines also assume that you are properly hydrated. The current travels through Your body fat content, as well as water, so if you are dehydrated or too hydrated, the reading will be inaccurate.

Other Considerations

Some of the factors that must be considered when calculating Your BMI. Age could be an important factor, because older people tend to have more body fat at the same BMI with the younger guys. Similarly, women tend to have more body fat levels high at the BMI is equal to men. BMI also affect muscle content. Athletes tend to have a high BMI readings, since they have a high content of muscle, which is heavier than fat. In this situation, the hand-held method is far more accurate than with the weight compared to height calculation, because it measures the actual fat content.