Clinical sports nutrition 2 nd ed the mcgraw hill co australia faria fr et al 2013. Body fat equations and electrical bioimpedance values in. Electrical impedance myography is a third method that measures your bodys. Muscle fat bone etc all have varying amounts of water content and as a result they all differ in terms of electrical conductivity. Now lets talk about bia. Burke l deakin v 2002.
Most body water is stored in muscle. Macias n1 alemán mateo h esparza romero j valencia me. Percentage of body fat is strongly associated with the risk of several chronic diseases but its accurate measurement is difficult. Bioelectrical impedance analysis bia is a commonly used method for estimating body composition in particular body fat and muscle massin bia a weak electric current flows through the body and the voltage is measured in order to calculate impedance resistance of the body. However the convienience of this method comes at a price of accuracy. Bioelectrical impedance bia bia is one of the quickest and easiest methods for predicting body fat.
Bioelectric impedance vector analysis biva is a graphic display that was developed by professor a. This is possible simply because different bodily tissues eg. A cross validation study to design bioelectrical impedance equations in mexican adults. Accuracy can also vary depending on various factors including. It presents coordinate systems with tolerance ellipses for the graphic display of body impedance and fat mass indices. Measurement errors can range from 35.
Bioelectrical impedance analysis bia is a relatively simple quick and non invasive technique to measure body composition. 1centro de investigación en nutrición y salud instituto nacional de salud pública. Bioelectrical impedance analysis bia is able to make an estimation of body composition eg. Body fat measurement by bioelectrical impedance and air displacement plethysmography. Piccoli for a better interpretation of body impedance. The 4 compartment model is currently the gold standard when it comes to predicting body composition and is the benchmark against which other body fat tests are compared.
They compared several body fat tests including bioelectrical impedance the technology used in body fat scales with something called the 4 compartment model. Body fat scales can be an easy way to track your body fat percentage but they may not tell the complete story about your health. In part 1 of this series you learned about how body fat testing is a prediction not a measurement. In part 2 you learned about underwater weighing and in part 3 you learned about the bod pod. Focusing on body fat percentage instead of weight is much more useful. Quantities of fat mass and fat free mass by running a small electrical current through the body.
Gallery of Body Fat Measurement Electrical Impedance
