The orthosis is not an arch support but exerts a positional change on the heel bone and the forefoot. Note how the uncorrected foot collapses inwards or flattens, this affects the leg position causing it to twist inward.
The shin bone or tibia is forced out of alignment with the thigh bone or femur, this can lead to wear and tear at the knee by forcing it to operate less optimally. The femur/hip relationship can similarly be affected and so on to the lower back.
• The foot acts like an auxilary pump, helping to return blood against gravity to the heart
• It contains 26 plus bones, 33 muscles, over 100 ligaments, over 250,000 sweat glands
• In the average lifetime our feet carry us at least 3 times around the world, 70,000 plus miles
• The bodies weight is trebled through the feet when walking and is more than 6 times when running
• A quarter of the body's bones are found in the feet
• The average person may take between 15,000 - 20,000 steps a day
• Each foot posesses around 250,000 sweat glands, producing as much as an egg cup full of sweat each day
• Despite the rigorous role of the feet they are extremely sensitive and sensuous! Due to the 72,000 + nerve endings per foot
• Feet are a very useful clinicians diagnostic tool, providing many clues to conditions, including cardiovascular, circulatory and hormonal imbalances
Biomechanics and Orthoses
Simply explained a Podiatrist applies the science of Biomechanics when treating his patients. Researchers discovered that many of us inherit feet that have slight defects that can generate for instance callouses in normal use or function. They also found that this defective function can affect our leg bones, joints and muscles, even the back and our general posture. Understanding how this occurs and treating such conditions requires specialist knowledge, in which a Podiatrist has trained. A Podiatrist can perform a Biomechanical assessment, an examination of the foot and leg bone architecture and function and provide shoe inserts, Orthoses that help neutralise the abnormal stresses. Over the course of many years to adulthood and beyond the effects to our bodies can amount to what is commonly termed “wear and tear”.