|Pressure Scale (Pounds/Sq. Inch)
||Foot with Silicone Dynamic Orthotic
|Total Foot Area
||23.7 Sq. Inches
||22.3 Sq. Inches
The picture on the left is barefoot. Note the scale of colors to the
left. Low pressure is blue, high pressure is red. Notice how the patient's
full foot makes contact with the mat. You can see some outline of the arch
where the pressure gets even less (darker blue), but is still making contact
with the sensors in the mat.
This patient was not wearing any other orthotics.
The picture to the right shows how the fluid moves in response to an
axiom of physics "fluid moves to the area of least resistance and greatest
need". Notice how the arch (with SDO) has increased in pressure (lighter
blue), and at the same time reduced high pressure under the 3rd metatarsal.
In this picture we also see that the SDO has dampened some heel pressure
by preventing overpronation.
COMMENT: It is common to think that the arch in a flat foot would
push the fluid to the outside of the foot. The thinking being that the
arch is too collapsed therefore pushing the fluid away. The error in this
thinking is because the arch of the flat foot is actually weak (that's
why it falls), it is the outside of the foot with higher pressure, thereby
pushing the fluid into the "area of least resistance and greatest need"
and supports the arch, correcting foot and musculo-skeletal alignment.