National institutes of health technology assessment conference statement. In addition 20 experts.
Body Composition In Sport Bia Adam Virgile Sport Science
Bioelectrical impedance analysis in body composition measurement. Impedance tissue resistance and reactance is registered when a lowvoltage current is passed through the body 18. Since the advent of the first commercially available devices. No authors listed objective. 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. Bioelectrical impedance analysis bia is a safe and cost efficient method that avoids exposure to radiation and is used to measure body composition. Quantities of fat mass and fat free mass by running a small electrical current through the body.
It measures body fat accurately in controlled clinical conditions but its performance in the field is inconsistent. It is based on the difference in resistance when an electrical current is conducted through fat or lean components of the body. Bioelectrical impedance analysis is a commonly used method for estimating body composition in particular body fat and muscle mass. Bioelectrical impedance analysis bia is able to make an estimation of body composition eg. To provide physicians with a responsible assessment of bioelectrical impedance analysis bia technology for body composition measurement. This is possible simply because different bodily tissues eg.
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. Most body water is stored in muscle. Bioelectrical impedance analysis in body composition measurement. Participants were a non federal nonadvocate 13 member panel representing the fields of nutrition pediatrics surgery public health biomedical engineering epidemiology and biostatistics. Assessment of bioelectrical impedance analysis bia technology for body composition measurement. The technology is relatively simple quick and noninvasive.
Bia is currently used in diverse settings including private clinicians offices health clubs and hospitals and across a spectrum of ages body weights and disease states. Bioelectrical impedance analysis bia is a relatively simple quick and non invasive technique to measure body composition. Bioelectrical impedance analysis bia is a widely used method for estimating body composition. The present study aimed to determine the agreement and feasibility of three methods bioelectrical impedance analysis bia ultrasound and air displacement plethysmography adp for measuring body composition in people receiving hpn. Fat muscle water and other important indicators of underlying medical conditions are not considered in the bmi. Bioelectrical impedance analysis bia estimates body composition using equations that calculate the difference of electrical conductivity among different tissues eg bones adipose muscle cartilage 17.
In bia a weak electric current flows through the body and the voltage is measured in order to calculate impedance of the body. Muscle fat bone etc all have varying amounts of water content and as a result they all differ in terms of electrical conductivity.
Gallery of Bioelectrical Impedance Analysis In Body Composition Measurement
