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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.
In human body measurement, these three sizes are the circumferences of the bust, waist and hips; usually rendered as xx–yy–zz in inches, or centimeters. The three sizes are used mostly in fashion, and almost exclusively in reference to women, [1] who, compared to men, are more likely to have a narrow waist relative to their hips.
The degree of circularity of an ellipse is quantified by eccentricity, with values between 0 to 1, where 0 is a perfect circle (waist circumference same as height) and 1 is a vertical line. [1] To accommodate human shape data in a greater range, Thomas and colleagues mapped eccentricity in a range of 1 to 20 by using the equation: [ 1 ]
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 ...
One additional measurement that may be helpful is body roundness index (BRI). As noted by the authors of the current study, BRI looks at waist circumference and height and helps reflect fat ...
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]
A study showed that self-reported measurements, as opposed to measurement done by a technician, underestimated waist circumference and this underestimation increased with increased body size. In the study, waist circumference measured at the level of the umbilicus was larger than that measured at the natural waist. [1]
Measure Yourself Accurately and Know Your Body Shape “Use a flexible tape measure to measure your waist, hips, and inseam accurately,” she says. “Put these measurements in the notes of your ...