Science has gotten to the bottom of an ages-old question: What is the ideal female rear?
The quick, one-word answer: Beyoncé.
In a study published this month in the Journal of the American Society of Plastic Surgeons, scientists present a mathematical way to determine “the ideal buttocks size.”
Using their formula, The Daily Mail determined that Beyoncé and British actress and model Rosie Huntington-Whiteley possess near-ideal rear views.
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“Perception of beauty is influenced by geographic, ethnic, cultural, and demographic factors. However, objective measurements remain the foundation for aesthetic evaluations,” the authors write.
“In the quest to better define the ‘ideal’ female buttock, this study assumes interdependence among variables such as country of residence, sex, age, occupation, and aesthetic perception, yielding a waist-to-hip ratio that appears most pleasing across most cultures and geographic locations.”
The perfect butt hinges on the ratio between the waist and the hips. In an interactive, online survey, given in multiple languages and taken by 583 plastic surgeons and 449 members of the general public in 35 countries, participants looked at photos of a 27-year-old volunteer Caucasian female model taken from behind and from the side.
The photo was digitally altered to show her bottom in various sizes and varying volume, smaller and larger in 10 percent increments.
Thirty-nine percent of participants – 682 men and 350 women – declared the 0.7 waist-to-hip ratio to be “ideal,” a score, so to speak, reached by dividing the waist measurement by the hip measurement.
Thus Beyoncé, with a 26-inch (non-pregnant) waist and 40-inch hips, comes close to that scientific ideal at 0.65, the Daily Mail conjectured.
Huntington-Whiteley, with a 25-inch waist and 35-inch hips, “scores” 0.71.
Scientists who have investigated the role of body proportions and waist-to-hip ratios in defining female attractiveness have found that people’s ideas of the perfect female body is influenced more by this waist-to-hip ratio than overall body size, the study notes.
Where people live, ethnicity and age influenced their ideas on booty beauty.
“Although beauty lies in the eyes of the beholder, it is also influenced by the individual’s geographic, ethnic, and cultural background and characteristics,” the survey says.
Plastic surgeons in Latin America, for instance, preferred the largest buttocks, followed by surgeons in Asia, North America and Europe.
Non-Caucasian participants in the survey preferred larger buttocks than Caucasians.
Younger people liked bigger buttocks.
But that’s today, the study notes, and this number is not necessarily magic.
“However, caution should be exercised when applying such ratios universally, because although objective and validated measures are useful, aesthetics are not defined simply by metrics alone,” write the study’s authors.