The foot has still not fully adapted to the role of walking on two legs that it has been forced into by evolution. It cannot bear constant use and both its longitudinal and transverse arches fall so the inner side of the foot touches the ground. If you step on concrete with wet feet, an impression of the sole becomes visible. Naturally, a more professional way of checking this is to use the computer examination equipment.
The image on the right shows a clear illustration of a fallen transverse arch (1), the yellow area showing strong pressure. The body’s weight line has shifted towards the centre (2). The inner ankle protrudes as the ankle leans inwards.
The signs of the disorder can be recognised by the man-in-the-street and is called flat feet in everyday language. Due to the disappearance of the arch, the inner ankle stands out noticeably. The foot loses its graceful shape together with the ability to walk flexibly. Flat feet can develop in early childhood when the child starts walking. (But don’t confuse a toddler’s soft archless sole full of fatty tissue with flat feet!) Later it can develop in the periods of rapid growth between the ages of 7-10 and 16-20 years. In adult life women are prone to develop flat feet around the menopause, probably due to the hormonal changes, but this can often happen during pregnancy as well.