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The waist-to-height ratio (WHtR, [a] or WSR: waist-to-stature ratio) is the waist circumference divided by body height, both measured in the same units. WHtR is a measure of the distribution of body fat. Higher values of WHtR indicate higher risk of obesity-related cardiovascular diseases, which are correlated with abdominal obesity. [1]
The waist–hip ratio or waist-to-hip ratio (WHR) is the dimensionless ratio of the circumference of the waist to that of the hips. This is calculated as waist measurement divided by hip measurement (W ⁄ H). For example, a person with a 75 cm waist and 95 cm hips (or a 30-inch waist and 38-inch hips) has WHR of about 0.79.
An automatic calculator computes the BRI using waist, height and an ellipse factor. [1] [2] The only device needed to determine BRI is a measuring tape for circumference of waist and determination of height. [1] [2] These values are factored with an eccentricity equation in a calculator. [1] [2]
A related indicator is waist circumference divided by height. A 2013 study identified critical threshold values for waist-to-height ratio according to age, with consequent significant reduction in life expectancy if exceeded. These are: 0.5 for people under 40 years of age, 0.5 to 0.6 for people aged 40–50, and 0.6 for people over 50 years of ...
Men's standard sizes were probably developed first during the American Revolutionary War, and they were in regular use by the American army during the War of 1812 for ready-made uniforms. [1] These were based on the chest measurement, with other measurements being assumed to be either proportional (the circumference of the neck, waist, hips ...
This includes waist circumference, waist-to-hip ratio and skinfold measurements — the last of which requires measuring the width of your skin and the body fat underneath it in places like your ...
The National Heart, Lung, and Blood Institute [8] classifies the risk of obesity-related diseases as high if men have a waist circumference greater than 102 cm (40 in) and women have a waist circumference greater than 88 cm (35 in).
In the United States a waist circumference of >102 cm (≈40") in men and >88 cm (≈34.5") in women [26] or the waist–hip ratio (the circumference of the waist divided by that of the hips) of >0.9 for men and >0.85 for women are used to define central obesity.
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