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The BRI models the human body shape as an ellipse (an oval), with the intent to relate body girth with height to determine body roundness. It is calculated simply using a tape measure to obtain waist circumference and height, which are then combined with an ellipse factor before computation by an automatic calculator. [1] [2]
Learn about the distance from the bottom of the feet to the top of the head in a human body, standing erect. Find out how genetics, environment, nutrition, and other factors affect human height, and how it varies across populations and over time.
A table of average adult human height by country or region, based on individual surveys and studies or estimated figures. Compare the measured and self-reported heights, the stature ratio, and the accuracy of the data sources.
Body mass index (BMI) is a value derived from the mass (weight) and height of a person, used to broadly categorize them as underweight, normal, overweight, or obese. BMI has limitations and variations depending on factors such as age, gender, muscle mass, and fat distribution.
A growth chart is a tool to monitor a child's growth over time and compare it to the expected parameters of children of the same age and sex. Learn about the history, revisions, and quantitative definitions of growth charts, as well as the common variants and clinical significance of normal and abnormal growth patterns.
Waist-to-height ratio (WHtR) is a measure of body fat distribution and a predictor of obesity-related cardiovascular disease. Learn about the suggested boundary values, the NICE guidelines and the evidence for WHtR as a public health tool.
Learn about the study of body proportions in art, the measurements and ratios used to depict the human figure, and the variations across time and culture. Explore the artistic canons of body proportion, the golden ratio, and the examples from ancient and modern art.
Height is a measure of vertical distance or position, either of an object or a point. Learn about the different types of height in mathematics, geosciences, aviation, and human culture, and how they are related to altitude, elevation, and sea level.