Well, you won't believe that but, given a body with such characteristics and unlearning the abducted legs, to plot a circumference tangent to the base and to the highest rotation of the arms say, why not, to the maximum natural stretching – instead of any arbitrary angle – it would assign to the circle touching the feet a radius which is in Golden ratio with the square
i.e. centered on the Φ height of the man, right above the navel.
As we can evidently stress through this figure, that improvised requirement to touch with the fingers the square and the circle on the same point, has given rise to a distortion which is still leading to the bigger representative mistake, i.e. the sacrifice of this enlightening basic truth!And that's not all, another very interesting factor emerges: symmetrical from above to below the navel we find out the energetic point that the eastern esoteric disciplines define as Hara, fundamental for controlling balance and movement even in combat practices.
The entry and management point of the force called 'Ki' or [t]Chi
(though some schools identify it with the third chakra).