Overpronation is a term that gets thrown around a lot by psuedo-experts and there is so much written online about it, that it can get very confusing to determine what is legitimate and what is not. Pronation is a normal motion of the foot that occurs when the ankle rolls inwards and the arch collapses. This is normal. Its not something evil. Overpronation is assumed to be when there is too much of it. There certainly is debate as to just how much is too much, as some people have large amounts and have no problems, other have small amounts and do have problems. It all comes down to individual differences and how much force is needed to stop the foot moving. The greater the force, regardless of the amounts of pronation, the more likely it is to be a problem. Some still like to debate if it is a problem or not. Some studies have shown that its not a problem and other studies have shown it is. If the data from all these studies are pooled, then the conclusion was that, yes, overpronation is a problem that was statistically significant, but it was only a small risk factor for problems. An associated finding of overpronation during a gait analysis is an abductory twist.
Unless there is a severe, acute injury, overpronation develops as a gradual biomechanical distortion. Several factors contribute to developing overpronation, including tibialis posterior weakness, ligament weakness, excess weight, pes planus (flat foot), genu valgum (knock knees), subtalar eversion, or other biomechanical distortions in the foot or ankle. Tibialis posterior weakness is one of the primary factors leading to overpronation. Pronation primarily is controlled by the architecture of the foot and eccentric activation of the tibialis posterior. If the tibialis posterior is weak, the muscle cannot adequately slow the natural pronation cycle.
Overpronation can lead to injuries and pain in the foot, ankle, knee, or hip. Overpronation puts extra stress on all the bones in the feet. The repeated stress on the knees, shins, thighs, and pelvis puts additional stress on the muscles, tendons, and ligaments of the lower leg. This can put the knee, hip, and back out of alignment, and it can become very painful.
You can test for pronation by looking at the leg and foot from the back. Normally you can see the Achilles Tendon run straight down the leg into the heel. If the foot is pronated, the tendon will run straight down the leg, but when it lies on the heel it will twist outward. This makes the inner ankle bone much more prominent than the outer ankle bone.
Non Surgical Treatment
There are exercises that you can do to help deal with the effects and treat the cause. Obviously you can opt for an insert into your shoe either by way of your sports shop or go see a podiatrist. Like anything in your body that is not working correctly; you will have to manage your condition. Don’t put off dealing with the problem as it will manifest associated issues along the alignment and as far up as your neck. If it’s mild pronantion, I suggest running barefoot. If you can’t do this then don’t wear shoes at all at home or in the office as much as possible. Give your calf muscles a huge stretch everyday as these with the ligaments from the foot up to the muscle get tight and are linked to your pain. Loosen your calf muscles as much as possible. Great exercise is to sit barefoot with a marble on the floor in front of you. Grab the marble with your toes and try to hold it tight in the middle of the base of your foot. Ping pong balls and even golf balls work. Do this each night and combined with calf stretches you’ll start to correct the muscle alignment gradually in the foot. Put more attention into massaging your feet, standing with a good posture, stretching your feet, ankles and calf muscles. Lastly, if you are fat this will not help at all. You must lose weight swimming, cycling and eradicating sugar and fat from your diet. The added strain on the foot by being a fat body compounds the problems and inhibits corrective results that you are after.
With every step we take, we place at least half of our body weight on each foot (as we walk faster, or run, we can exert more than twice our body weight on each foot). As this amount of weight is applied to each foot there is a significant shock passed on to our body. Custom-made orthotics will absorb some of this shock, helping to protect our feet, ankles, knees, hips, and lower back.