Body proportions

While there is significant variation in anatomical proportions between people, there are many references to body proportions that are intended to be canonical, either in art, measurement, or medicine.

In measurement, body proportions are often used to relate two or more measurements based on the body. A cubit, for instance, is supposed to be six palms. While convenient, these ratios may not reflect the physiognomic variation of the individuals using them.

Similarly, in art, body proportions are the study of relation of human or animal body parts to each other and to the whole. These ratios are used in veristic depictions of the figure, and also become part of an aesthetic canon within a culture.

Basics of human proportions
It is important in figure drawing to draw the human figure in proportion. Though there are subtle differences between individuals, human proportions fit within a fairly standard range, though artists have historically tried to create idealised standards, which have varied considerably over different periods and regions. In modern figure drawing, the basic unit of measurement is the 'head', which is the distance from the top of the head to the chin. This unit of measurement is reasonably standard, and has long been used by artists to establish the proportions of the human figure. Ancient Egyptian art used a canon of proportion based on the "fist", measured across the knuckles, with 18 fists from the ground to the hairline on the forehead. This was already established by the Narmer Palette from about the 31st century BC, and remained in use until at least the conquest by Alexander the Great some 3,000 years later.

The proportions used in figure drawing are:


 * An average person, is generally 7-and-a-half heads tall (including the head).
 * An ideal figure, used when aiming for an impression of nobility or grace, is drawn at 8 heads tall.
 * A heroic figure, used in the heroic for the depiction of gods and superheroes, is eight-and-a-half heads tall. Most of the additional length comes from a bigger chest and longer legs.

Leg-to-body ratio
A study using Polish participants by Sorokowski found 5% longer legs than an individual used as a reference was considered most attractive. The study concluded this preference might stem from the influence of leggy runway models. The Sorokowski study was criticized for using a picture of the same person with digitally altered leg lengths which Marco Bertamini felt were unrealistic.

Another study using British and American participants, found "mid-ranging" leg-to-body ratios to be most ideal.

A study by Swami et al. of American men and women showed a preference for men with legs as long as the rest of their body and women with 40% longer legs than the rest of their body The researcher concluded that this preference might be influenced by American culture where long leg women are portrayed as more attractive. The Swami et al. study was criticized for using a picture of the same person with digitally altered leg lengths which Marco Bertamini felt were unrealistic. Bertamini also criticized the Swami study for only changing the leg length while keeping the arm length constant. Bertamini's own study which used stick figures mirrored Swami's study, however, by finding a preference for leggier women.

Muscle men and thin women
A 1999 study found that "the (action) figures have grown much more muscular over time, with many contemporary figures far exceeding the muscularity of even the largest human bodybuilders," reflecting an American cultural ideal of a super muscular man. Also, female dolls reflect the cultural ideal of thinness in women.

Japanese ideal
Japanese ideals for body proportions differ from Western ideals. The most prominent example of this is moe, characteristics of which include large eyes, small noses, tall irises, thin limbs, large heads, and neotenized faces. Manga characters are usually sized to be 5.7 to 6.5 heads tall. Another example of the Japanese ideal is the concept of the gracilized man: in contemporary Japanese society, bishōnen, literally "beautiful boys", are "delicate", "svelte" and "beautiful" males who are drawn to appeal to "adolescent girls".

Leonardo da Vinci
Leonardo da Vinci believed that the ideal human proportions were governed by the harmonious proportions that he believed governed the universe such that the ideal man would fit cleanly into a circle as in his famed "Vitruvian man" drawing.