The stress of repeated impact of jogging predisposes the foot to significant trauma. An average jog of 2.5 km consists of nearly 3,000 steps, each of which exerts approximately 2.5 times the body's weight onto the foot. This shock is, in part, absorbed by the plantar fascia and then transmitted to the ankle, knee, hip and lower back.

When running, the plantar fascia may lose its capacity to act as a shock absorber, thus increasing the shock transmitted to the knees and lower back.

Customized orthotics (we recommend our Sport Flex Orthotic):

minimize the shock transmitted to the ankles, knees, hips and low back

and in doing so help the runner to optimize performance and maximize cardiovascular endurance.