In BIA, a weak electric current flows through the body and the voltage is measured in order to calculate impedance (resistance) of the body. Herein, we evaluate the accuracy and reliability of multifrequency bioelectrical impedance analysis (BIA) to assess skeletal muscle mass (SMM) in the colorectal cancer … Press question mark to learn the rest of the keyboard shortcuts, "The Pitfalls of Bodyfat “Measurement”, Part 4: Bioelectrical Impedance (BIA)". Not really. It's like the scale associate 153lbs with 128lbs of lean body mass. I got one of these awhile back to somewhat monitor my body fat percentage, way before I started the Keto diet. In my opinion, the best way to get an accurate reading would be to take 2-3 readings a day, every day, graph those percentages on excel and takes averages on a daily/weekly/monthly basis. Bioelectrical impedance analysis (BIA) is an attractive method for identifying sarcopenic patients in clinical practice because it provides an affordable, noninvasive test that can be completed within a few minutes during a clinic visit. Bioelectrical impedance (BIA) can potentially meet these needs but its validity in active individuals is not well established. Body fat (adipose tissue) causes greater resistance (impedance) than fat-free mass and slows the rate at which the current travels. The electrical impedance (Z) consists of two components, resistance (R) and reactance (Xc). Helping people with diabetes, epilepsy, autoimmune disorders, acid reflux, inflammation, hormonal imbalances, and a number of other issues, every day. The purpose of this review is to examine the theory and assumptions that may limit the use of bioelectrical impedance analysis in such individuals. If strict hydration protocols are adhered to, BIA is actually reasonably accurate. G-SH, HC, and S … 2011 Apr;25(4):1040-5. doi: 10.1519/JSC.0b013e3181cc224a. Some studies published in 2015 showed that bioelectrical impedance analysis is a fairly accurate method for estimating body fat. Press question mark to learn the rest of the keyboard shortcuts. My fitbit aria uses bioimpedance and told me I'm at 10%. Averaging a month of readings shows overall progress with accuracy even if the absolute body fat reading is off. I could be wrong on that though. The purpose of this study was to observe and compare the effects of dehydration on hydro- static weighing and bioelectrical impedance body composition analysis as induced by exercise. Again, you can see BIA had the biggest spread of all the methods, even bigger than BMI. Purpose of review: Several factors limit the use of bioelectrical impedance analysis as a valid predictor of the amount of body fat in morbidly obese individuals. Over the course of time you can graph the chart and see if there’s a trend, if there is tada! Accuracy can also vary depending on various factors, including gender, body type, and age. The principle of BIA is to determine the electric impedance of an electric current passing through the body [15]. If strict hydration protocols are adhered to, BIA is actually reasonably accurate. just like a scale, who cares about a number? Lyle McDonald, "Measuring Body Composition: Part 2". Bioelectrical impedance analysis (BIA) is a promising tool in the evaluation of body composition in large population studies because it is fast, is inexpensive, and does not require extensive operator training or cross-validation. resistance of the body and the accuracy of BIA. I am interested in tracking my body fat percentage, to that goal I was thinking of buying a body composition scale(more specifically this one). 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