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Body roundness index (BRI) is a calculated geometric index used to quantify an aspect of a person's individual body shape. Based on the principle of body eccentricity, it provides a rapid visual and anthropometric tool for health evaluation. [1] Introduced in 2013, the BRI calculation can be used to estimate total and visceral body fat.
Roundness is the measure of how closely the shape of an object approaches that of a mathematically perfect circle. Roundness applies in two dimensions , such as the cross sectional circles along a cylindrical object such as a shaft or a cylindrical roller for a bearing .
Two parameters are shown: sphericity (vertical) and rounding (horizontal). Sphericity is a measure of how closely the shape of an object resembles that of a perfect sphere . For example, the sphericity of the balls inside a ball bearing determines the quality of the bearing, such as the load it can bear or the speed at which it can turn without ...
What is the body roundness index and is it better than BMI? Here's how BRI works and how it's used to calculate obesity and a measure of a person's health.
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The body mass index (BMI) considers the height-weight relationship as a health indicator, while the body roundness index (BRI) measures abdominal body fat and height. BMI has often been criticized ...
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Circularity of an object or roundness; A circularity ratio as a compactness measure of a shape; An assumption of ANOVAs, with repeated-measures, often called "sphericity"