Body proportions

(fifth century BCE) 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. One version of the proportions used in modern figure drawing is: • 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 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. Measurements There are a number of important distances between reference points that an artist may measure and will observe: These are the distance from floor to the patella; from the patella to the front iliac crest; the distance across the stomach between the iliac crests; the distances (which may differ according to pose) from the iliac crests to the suprasternal notch between the clavicles; and the distance from the notch to the bases of the ears (which again may differ according to the pose). Some teachers deprecate mechanistic measurements and strongly advise the artist to learn to estimate proportion by eye alone. Ratios Many text books of artistic anatomy advise that the head height be used as a yardstick for other lengths in the body: their ratios to it provide a consistent and credible structure. Although the average person is 7 heads tall, the custom in Classical Greece (since Lysippos) and Renaissance art was to set the figure as eight heads tall: "the eight-heads-length figure seems by far the best; it gives dignity to the figure and also seems to be the most convenient." • Hip-to-shoulder ratio: the head-on lateral width ratio varies by biological sex. The average ratio for women is 1:1.03, for men it is 1:1.18. • Leg-to-body ratio: the leg-to-body is seen as indicator of physical attractiveness but there appears to be no accepted definition of leg-length: the 'perineum to floor' measure is the most used but arguably the distance from ankle bone to outer hip bone is more rigorous. On this (latter) metric, the most attractive ratio of leg to body for men (as seen by American women) is 1:2, Excessive deviations from the mean were seen as indicative of disease. • Waist-to-height ratio: the average ratio for US college competitive swimmers is 0.424 (women) and 0.428 (men); the ratios for a (US) normally healthy man or woman is 0.460.53 and 0.450.49 respectively; the ratio ranges beyond 0.63 for morbidly obese individuals. • Waist-to-hip ratio: artist's conception of the ideal waisthip ratio has varied down the ages, but for female figures "over the 2,500-year period the average WHR never exited 'the fertile range' (from 0.67 to 0.80)." The Venus de Milo (130100BCE) has a WHR of 0.76; in Anthony van Dyck's Venus Asks Vulcan to Cast Arms for Her Son Aeneas (1630), Venus's estimated WHR is 0.8; and Jean-Léon Gérôme's Birth of Venus (1890) has an estimated WHR of 0.66. ==Body proportions in history==

The earliest known representations of female figures date from 23,000 to 25,000 years ago. Models of the human head (such as the Venus of Brassempouy) are rare in Paleolithic art: most are like the Venus of Willendorf bodies with vestigial head and limbs, noted for their very high waist:hip ratio of 1:1 or more. The Canon applies the basic mathematical concepts of Greek geometry, such as the ratio, proportion, and symmetria (Greek for "harmonious proportions") creating a system capable of describing the human form through a series of continuous geometric progressions. Polykleitos may have used the distal phalanx of the little finger as the basic module for determining the proportions of the human body, scaling this length up repeatedly by to obtain the ideal size of the other phalanges, the hand, forearm, and upper arm in turn. Leonardo da Vinci believed that the ideal human proportions were determined by the harmonious proportions that he believed governed the universe, such that the ideal man would fit cleanly into a circle as depicted in his famed drawing of Vitruvian Man (c. 1492), as described in a book by Vitruvius. Leonardo's commentary is about relative body proportions with comparisons of hand, foot, and other feature's lengths to other body parts more than to actual measurements. '' drawing ==Golden ratio==

It has been suggested that the ideal human figure has its navel at the golden ratio (\phi, about 1.618), dividing the body in the ratio of 0.618 to 0.382 (soles of feet to navel:navel to top of head) ( is , about 0.618) and Leonardo da Vinci's Vitruvian Man is cited as evidence. In reality, the navel of the Vitruvian Man divides the figure at 0.604 and nothing in the accompanying text mentions the golden ratio. ==Additional images==

File:Fatanef333.jpg|Proportions of a human male face File:Braus 1921 2a.png|a 1½-year-old child File:Braus 1921 2b.png|an adult man File:Drawing of proportions of the male and female figure, 1936.jpg|Drawings by Avard T. Fairbanks developed during his teaching career. This image was used in Eugene F. Fairbanks' book on Human Proportions for Artists. File:Male Head proportions.jpg|Avard Fairbanks drawing of proportions of the male head and neck, 1936 File:Female Head proportions.jpg|Avard Fairbanks drawing of proportions of the female head and neck, 1936 File:Two-year-old child head proportions.jpg|Growth and proportions of children, one illustration from Children's Proportions for Artists == Bibliography ==