Pronation is the inward movement of the foot as it rolls to distribute the force of impact of the ground as you run. The foot "rolls" inward about fifteen percent, comes in complete contact with the
ground, and can support your body weight without any problem. Pronation is critical to proper shock absorption, and it helps you push off evenly from the front of the foot. Although pronation is a
natural movement of the foot, the size of the arch can affect its ability to roll, causing either supination (underpronation) or overpronation. If you have a normal arch, you're likely a normal
pronator, meaning you'll do best in a shoe that offers moderate pronation control. People with flat feet normally overpronate, so they do well in a motion-control shoe that controls pronation.
High-arched people typically underpronate, so they do best in a neutral-cushioned shoe that encourages a more natural foot motion.
There is a relationship between biomechanics and injury that is specific to each body part. Overall though, poor mechanics will either increase the landing forces acting on the body or increase the
work to be done by the muscles. Both increase the stress, which, depending on the individual and the amount of running can become excessive and cause injury.
Common conditions that develop with prolonged overpronation typically include plantar fasciitis, achilles tendonitis, shin splints, posterior tibial stress syndrome and even IT band syndrome. With
long term neglect you may see the development of bunyons, foot deformities and early onset of hip and knee arthritis.
So, how can you tell if you have overpronation, or abnormal motion in your feet, and what plantar fasciitis treatment will work to correct it? Look at your feet. While standing, do you clearly see
the arch on the inside of your foot? If not, and if the innermost part of your sole touches the floor, then your feet are overpronated. Look at your (running/walking) shoes. If your shoes are more
worn on the inside of the sole in particular, then pronation may be a problem for you. Use the wet foot test. Wet your feet and walk along a section of pavement, then look at the footprints you leave
behind. A normal foot will leave a print of the heel connected to the forefoot by a strip approximately half the width of the foot on the outside of the sole. If you?re feet are pronated there may be
little distinction between the rear and forefoot.
Non Surgical Treatment
Overpronation is a condition in which the foot rolls excessively down and inward. The arch may elongate and collapse (or ?fall?) and the heel will lean inward. Overpronation should not be confused
with pronation. Pronation is a normal motion of the foot during weight bearing and allows the foot to absorb shock as it contacts the ground.
Many of the prevention methods for overpronation orthotics, for example, can be used interchangeably with treatment methods. If the overpronation is severe, you should seek medical attention from a
podiatrist who can cast you for custom-made orthotics. Custom-made orthotics are more expensive, but they last longer and provide support, stability, and balance for the entire foot. You can also
talk with a shoe specialist about running shoes that offer extra medial support and firm heel counters. Proper shoes can improve symptoms quickly and prevent them from recurring. Surgery can
sometimes help cure and prevent this problem if you suffer from inherited or acquired pes planus deformity. Surgery typically involves stabilizing the bones to improve the foot?s support and