Pronation is the natural tilt of your foot that either rolls inward or outward. This process helps you absorb shock and adapt to uneven surfaces.
The feet rolling too far inward puts you out of alignment, causing pain in other areas of the body.
Excessive or over pronation can flatten the arch and stretch soft tissues. This causes the joint surfaces to function at unnatural angles to each other, causing joints to become very loose and flexible. These unnatural angles make the spacing between joints minimal, and result in bone grinding. Overtime, strains develop and may cause permanent problems and deformities.
This can all be solved with an insert that re-adjusts your foot and puts you back into proper alignment.