What is an Orthotic?
Foot Orthotics allow the muscles, tendons and bones of the feet through open and closed chain joint migration, up through the legs, hip and lower back, to function at their optimal potential for our body weight, structure, walking pattern and life styles.
When appropriately prescribed and more importantly, appropriately manufactured, Foot Orthotics can decrease pain and discomfort in the foot, ankles, knees, hips and back. Foot Orthotics increase our stability, prevent further progression of bony deformities, soft tissue pain, burning and numbness and help to improve our overall quality of life in our activities of daily living (ADLs).
Remember, foot pain is not normal and should not be ignored. The pain in our feet often is associated with other pains in our lower limbs all due to the poor inherent biomechanics of our foot.
With a foot orthotic supporting the three main arches of the foot the muscles and tendons are able to work within their intended range of motions (ROMs) and we do not run the risk of causing injury or furthering one.
Benefits of Orthotics
Custom Foot Orthotics help in providing relief for painful foot problems or an injury, especially for those who must walk, or stand excessively on the job or in every day activities.
The mechanical properties of the Custom Foot Orthotic help to maintain the normal positioning of the bones in the foot, the joints in the ankle and knees leading up to the hips and lower back. The muscles and ligaments holding these bones in their intended anatomical positions are prevented from over stretching and becoming lax over time.
With enough functional correction from a Custom Foot Orthotic, the foot structure can be aligned to give more propulsion, making walking, running and even cycling more efficient biomechanically.
Along with aligning the foot structure, the Custom Foot Orthotic reduces muscular fatigue and helps to promote more efficient muscle performance thus enhancing performance during the gait cycle.
Below is an example of a foot without the corrective support of an orthotic and then another example of the same foot with a Custom Made Foot Orthotic from POL correcting and supporting the foot. Notice the difference a well made Custom Foot Orthotic makes!
The Structure and Function of an Orthotic
Foot Orthotics are constructed from various materials consisting of plastics, foam, rubbers, and cork composites that are utilized for their mechanical properties.
The main similarity of all Foot Orthotics is the principle of their structure. The core is comprised of a plastic material more commonly referred to as the shell. External support structures on the underside of the shell material are utilized for balance and support inside the footwear; these are commonly referred to as extrinsic posts. Soft padding is placed on the underside and the topside to absorb compression forces when walking and running, this includes the top covers, underlay materials and arch fills.
All of these materials have the goal of improving foot function and minimizing the stress forces that cause foot deformity and pain.
Dependent on the reason for the prescription of Foot Orthotics, all of the above mentioned materials can be utilized in many combinations to achieve three broad categories of Foot Orthotics:
- Those that primarily attempt to change foot function, known as functional Foot Orthotics
- Those that are mainly protective or accommodative in nature, and
- Those that combine functional control with accommodation for comfort.
Foot & Ankle Surgery · Nerve Specialist · Podiatry
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Patient Education
Walking and Your Feet
As always, you can contact our office to answer any questions or concerns.
About 67 million adults in this country have discovered that walking is one of the most fun, natural, and inexpensive ways of keeping your health—and your feet—in top shape. Walking can be enjoyed almost anywhere, any time, and year around. It's also a good way to get exercise, particularly for people who are out-of-shape.
According to the American Podiatric Medical Association, exercise offers a host of benefits. Walking helps control weight, blood sugar, and cholesterol levels. A brisk walk can burn up to 100 calories per mile or 300 calories per hour. Walking also improves cardiovascular fitness. As an aerobic exercise, walking gets the heart beating faster to transport oxygen-rich blood from the lungs to the muscles. The heart and lungs grow more efficient with a regular walking regimen, reducing blood pressure and the resting heart rate. Walking is also a central element of medical rehabilitation for a wide array of health problems. For example, recovery from a heart attack can be facilitated by a regular walking regimen. Additionally, walking creates an overall feeling of well-being, and can relieve depression, anxiety, and stress by producing endorphins, the body's natural tranquilizer. A brisk walk will relax you and also stimulate your thinking.
To gain the most health benefit from walking, it is important to pay attention to your feet. Shoes that don't fit properly or provide adequate support, lack of stretching, and improper gait can lead to foot injuries or pain. The most common foot problems are blisters, corns, calluses, and plantar fasciitis.
Walking Shoes
The only equipment you need to enjoy walking for fitness is a good pair of shoes. But before you can shop for the best shoe for your foot, you need to identify the natural inclination of your foot and gait. There are three basic foot types:
- Pronators are people with relatively flat feet, caused by low arches, which generally leads to overpronation, or a gait in which the ankle rolls inward excessively. People with this foot type need motion control shoes that offer support for mid-foot. Motion-control shoes are more rigid and built on a straight last. These are generally board-lasted shoes, which have a piece of cardboard running the length of the shoe for greater stability. Look for sturdy uppers for added stability and avoid shoes with a lot of cushioning or highly curved toes. Also look for a reinforced heel counter to maintain foot support and stability.
- Supinators are people with high arches, which can lead to underpronation that places too much weight on the outsides of the feet. People with this foot type need stability shoes designed for extra shock absorption and often having a curved or semi-curved last. A slip-lasted shoe is also recommended, because the sewn seam runs the length of the shoe giving it greater flexibility. Also look for shoes that are reinforced around the ankle and heel to stabilize the foot and extra cushioning under the ball of the foot.
- People with normal feet can wear any type of walking shoe, although a curved last is generally preferred.
When you walk, the natural motion of your foot rolls gradually from the heel to the toe, with your foot bending at the ball on each step. That's why it is important for walking shoes to have enough flexibility in just the right places. A good walking shoe should give a little when you twist it and bend at the ball of the foot. When you put the shoe on a flat surface and push on the toe the heel should come up off the surface. If it does, the shoe has the curvature you need to conform to your movement during walking. Make sure the heel is low and not too wide. A slight undercut in the heel will help your foot begin its roll from the heel through the step.
Here are some other important tips for buying a good pair of walking shoes:
- Shop at the end of the day when your feet are slightly swollen to get a good fit.
- Try on shoes with the socks you will wear when walking. If you use an orthotic, bring that to the store when you try on shoes as well.
- Have your feet measured standing up and fit your shoes to the larger of your two feet.
- Be sure there is enough room in the toe box for your toes to wiggle and about a half inch between your toes and the end of the shoe.
- Take time when shopping to try on different brands and walk around the store in each pair. Be sure to walk on a hard surface, not just on carpeting. Let your foot be the guide to the fit, not the shoe size or style.
- Look for lightweight, breathable materials for greater comfort.
- Run your hand all over and inside the shoes to feel for any seams or catches that might irritate your foot.
- Choose shoes that lace for better foot stability and control.
- Make sure your heel fits snugly and does not tend toward slipping out of the shoe.
- Wear your walking shoes only for walking to extend their life. Consider buying two pairs and rotating your wear to give each pair time to breath between walks.
- Replace walking shoes after every 300 to 600 miles, depending on how hard you are on your shoes.
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