Analysis of information sources in references of the Wikipedia article "Body proportions" in English language version.
Male SHRs (M=1.18±0.071, range 1.03–1.40) significantly (t=10.41, P<.01) exceeded female SHRs (M=1.03±0.066, range 0.90–1.22). Here and subsequently, M signifies mean±standard deviation.(These are head-on lateral widths, not circumferences.)
Though we do not know the exact details of Polykleitos's formula, the end result, as manifested in the Doryphoros, was the perfect expression of what the Greeks called symmetria
In the fourth century BCE, Lysippos drew up a canon of proportions for a more elongated figure that that defined by Polykleitos in the previous century. According to Lysippos, the height of the head should be one-eighth the height of the body, and not one-seventh, as Polykleitos recommended.