The anatomy of a normal foot allows for both to occur at the same time. Approximately 30% of the population have a normal foot. The remainder of people either overpronate (95% of abnormal feet) or oversupinate (5% of abnormal feet). The important thing to know is that all feet pronate and supinate, but abnormal feet do one of these things too much or at the wrong time. When the foot overpronates or oversupinates, several foot ailments can develop.
Abnormal foot biomechanics usually causes over-use type injuries, occurring most frequently in runners. When a neutral foot pronates during walking or running, the lower leg, knee and thigh all rotate internally (medially). When an athlete with an overpronated foot runs, this rotation movement is exaggerated and becomes more marked.
Symptoms can manifest in many different ways. Here is a list of some of the common conditions associated with over-pronation in children. Achilles Pain. Ankle pain. Arch Pain. Low back pain. Heel Pain. Knee Pain (Runner's knee and Chondromalecia of the patella) Osgood Schlatter Disease (pain below the knee) Shin Splints (pain in the front of the lower leg) Over-pronation does not necessarily mean your child has "flat feet." Even though children's arches may be relatively high when they lie down or sit, over-pronation may not be seen until your child is standing. A certain amount of pronation is normal. During normal walking or running ("gait cycle"), the heel strikes the ground and the foot rolls inward to absorb shock and adapt to the surface. This gait cycle is even more important if the running surface is uneven.
To easily get an idea of whether a person overpronates, look at the position and condition of certain structures in the feet and ankles when he/she stands still. When performing weight-bearing activities like walking or running, muscles and other soft tissue structures work to control gravity's effect and ground reaction forces to the joints. If the muscles of the leg, pelvis, and feet are working correctly, then the joints in these areas such as the knees, hips, and ankles will experience less stress. However, if the muscles and other soft tissues are not working efficiently, then structural changes and clues in the feet are visible and indicate habitual overpronation.
Non Surgical Treatment
An orthotic is a device inserted inside the shoe to assist in prevention and/or rehabilitation of injury. Orthotics support the arch, prevent or correct functional deformities, and improve biomechanics. Prescription foot orthoses are foot orthoses which are fabricated utilizing a three dimensional representation of the plantar foot and are specifically constructed for an individual using both weightbearing and nonweightbearing measurement parameters and using the observation of the foot and lower extremity functioning during weightbearing activities. Non-prescription foot orthoses are foot which are fabricated in average sizes and shapes in an attempt to match the most prevalent sizes and shapes of feet within the population without utilizing a three dimensional representation of the plantar foot of the individual receiving the orthosis.
Custom-made orthotics supports not only the arch as a whole, but also each individual bone and joint that forms the arch. It is not enough to use an over-the-counter arch support, as these generic devices will not provide the proper support to each specific structure of the arch and foot. Each pronated foot?s arch collapses differently and to different degrees. The only way to provide the support that you may need is with a custom-made device. This action of the custom-made orthotic will help to prevent heel spurs, plantar fasciitis, calluses, arch pain, and weakness of the entire foot.