They measure the amount of the impedance and then normalising for weight sex age racial variables be able to say that measurement of impedance means an amount of total body water tbw and assuming that the fat free mass has a fixed hydration level they can make the jump to say their measurement of the subjects impedance equals 60kg. Bio electrical impedance analysis or bioimpedance analysis bia is a method of assessing your body composition.
Bioelectrical Impedance Analysis Bia And Body Composition
Bioelectrical impedance body composition measurement. Therefore you can estimate body composition based on the amount of current that flows through your body. This is possible simply because different bodily tissues eg. The measurement of body fat in relation to lean body mass. Maltron is the worlds leading manufacturer in the field of bioelectrical impedance analysis bia offering a complete range of portable bedside diagnostic and monitoring instruments. Research has shown that body composition is directly related to health. Elikos impedance spectroscopy is best suited for applications which require fast multi frequency measurement.
More accurate and novel techniques for measuring body composition are readily available including computed tomography ct air displacement plethysmography adp ultrasound and bioelectrical impedance analysis bia. Assessment of bioelectrical impedance analysis bia technology for body composition measurement. Bioelectrical impedance analysis bia and body composition analyse as a physician you know that the body mass index bmi by itself is no t sufficient to analyze a patients health status and body composition thoroughly. Bioelectrical impedance measures your bodys resistance to an electrical signal. Bioelectrical impedance analysis bia is a commonly used method for estimating body composition in particular body fat and muscle mass. Quantities of fat mass and fat free mass by running a small electrical current through the body.
However there are minimal data on the usefulness of these measurements in people requiring hpn. Most body water is stored in muscle. It is an integral part of a health and nutrition assessment. The idea is that lean mass contains more water and electrolytes which conduct electrical current. Bioelectrical impedance spectroscopy is a widely used method for examining the properties of different biological structures whether single cells tissues or whole organ systems. Muscle fat bone etc all have varying amounts of water content and as a result they all differ in terms of electrical conductivity.
Fat muscle water and other important indicators of underlying medical conditions are not considered in the bmi. The biggest benefit of this method is its convenience. Bioelectrical impedance analysis bia is able to make an estimation of body composition eg. Participants were a non federal nonadvocate 13 member panel representing the fields of nutrition pediatrics surgery public health biomedical engineering epidemiology and biostatistics. In addition 20 experts. For many years maltron instruments have been widely used for the assessment of body composition in diverse settings by hospitals medics and clinics.
In bia a weak electric current flows through the body and the voltage is measured in order to calculate impedance resistance of the body.
Gallery of Bioelectrical Impedance Body Composition Measurement
