How does the Tanitas BIA compare with other methods in terms of accuracy, repeatability, cost, convenience, and length of procedure?
There are many methods of estimating body fat. The following is a summary of the most common ones. DEXA (Dual Energy X-ray Absorptiometry) Today, this method is considered a gold standard because of its reliability, precision, and the fact that it is based on three body components (fat, muscle, bone) rather than two (fat and muscle) as in most other methods including hydrostatic weighing. It allows fat distribution throughout the entire body to be read in a single scan. The equipment used is very expensive and a person must lie perfectly still for 10-20 minutes while the scan is taken. DEXA is found mainly in research facilities. Hydrostatic Weighing Done correctly, this method is also quite accurate and considered a gold standard. However, the test is somewhat subjective because it relies upon the subject’s ability to expel all oxygen from their lungs while submerged in a tank of water. Oxygen remaining in the lungs will skew the results. In clinical settings, this procedure is repeat
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