Body fat adipose tissue causes greater resistance impedance than fat free mass and slows the rate at which the current travels. They run a light electrical current through your body measure the degree of resistance or impedance to the flow of the current then use this information to estimate your body fat percentage 2.
Body Fat Measurement By Bioelectrical Impedance And Air
Impedance measurement body fat. The difference between body weight and lean body mass is calculated as the fat mass. With a density of 09 gcm3 and with scarcely any of the typical properties of the cells of the body cell mass bcm it barely has any capacitive resistance reactance. This is due to the lower water percentage 50 in fat compared to muscle 75. Bioelectrical impedance analysis bia is a method for measuring body composition based on the rate at which an electrical current travels through the body. Bia or bioelectrical impedance analysis is a non invasive measurement of body fat lean muscle mass and hydration. Bioelectrical impedance analysis is a commonly used method for estimating body composition in particular body fat and muscle mass.
Bia involves running a light electrical current through your body. Since the advent of the first commercially available devices. However the convienience of this method comes at a price of accuracy. It works since fat conducts electricity differently than bones and muscle tissue it has different impedance. When you step on the scale an electrical current passes through one leg up to the pelvis and down the other. Body circumference measurements and body fat scales that use bioelectrical impedance are both methods you can do on your own.
Most body water is stored in muscle. While not as accurate as skinfold measurements taken by a trained. Body fat bf body fat performs as an insulator to alternating current. The body fat percentage is a measure of fitness level since it is the only body measurement which directly calculates a persons relative body composition without regard to height or weight. Therefore if a person is more muscular there is a high chance that the person will also have more body water which leads to lower impedance. Bioelectric impedance analysis this is the only indirect method other than the one using body measurements and weight such as in our body fat calculator.
A number of methods are available for determining body fat percentage such as measurement with calipers or through the use of bioelectrical impedance analysis. Body fat percentage scales use a method known as bioelectrical impedance bia to estimate your body composition. How accurate are body fat scales. Body fat scales use technology called bioelectrical impedance analysis bia. A small current is used to measure the resistance at difference frequencies against the various tissues in the body eg fatlipid has a high resistance to the flow of current therefore shows a high impedance reading. Bioelectrical impedance bia bia is one of the quickest and easiest methods for predicting body fat.
In bia a weak electric current flows through the body and the voltage is measured in order to calculate impedance of the body.
Gallery of Impedance Measurement Body Fat
