Dexa Scan How To Accurately Measure Body Composition

Which Body Composition Measurement Is Called Gold Standard

Tomographic imaging techniques such as computed tomography ct and magnetic resonance imaging mri are available which involve in vivo measurements of different fat depots and fat infiltration in organs and are considered to be the gold standard for body composition analysis 56. Underwater weighing is called the gold standard of body composition tests. A dexa scan requires medical supervision by a radiologist and some consider it to be the new gold standard in body composition testing. Texas am dual energy x ray absorptiometry dexa. For this reason three measurements are performed and the average is taken. What was the gold standard of body composition assessment for years.

Body mass kg height2 m2. Hydrostatic weighing is currently the gold standard or criterion body composition assessment technique false true or false. What does not actually measure body composition but rather focuses on mortality data that may reflect obesity related comorbitidites. The ideal way to measure body composition in a lab setting would be to measure percentage of body fat. Air displacement plethysmography uses computerized pressure sensors to determine amount of air displaced by the person inside the chamber. The gold standard by which all other body composition measurement techniques are compared lean body mass parts of the body such as connective tissue muscle bone and organs.

When follow up body composition assessments are made you should use. The same measurement as the original assessment which technique for assessing body composition is considered a gold standard. The gold standard hudson medical teamwellnessjune 25 2019 when it comes to analyzing total body composition the most accurate type of scan you can get is the dexa scan. Along with proper use of the equations. However its accuracy depends on how consistent you can exhale air from your lungs. In order to do so the underwaterhydrostatic weighing measures bone density and therefore can provide the most accurate percentage of body fat.

Each of the methods has advantages and disadvantages. Total body scans using dexa give accurate and precise measurements of body composition including bone mineral content bmc bone mineral density bmd lean tissue mass fat tissue mass and fractional contribution of fat. What is it based upon. Body density mass of air mass of air mass of water underwater weighing is regarded as the gold standard for body composition measurement as it is one of the only body composition technologies that have been compared directly to cadaver analysis.

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