As with the "normal pronation" sequence, the outside of the heel makes the initial ground contact. However, the foot rolls inward more than the ideal fifteen percent, which is called "overpronation."
This means the foot and ankle have problems stabilizing the body, and shock isn't absorbed as efficiently. At the end of the gait cycle, the front of the foot pushes off the ground using mainly the
big toe and second toe, which then must do all the work.
There are many causes of flat feet. Obesity, pregnancy or repetitive pounding on a hard surface can weaken the arch leading to over-pronation. Often people with flat feet do not experience discomfort
immediately, and some never suffer from any discomfort at all. However, when symptoms develop and become painful, walking becomes awkward and causes increased strain on the feet and calves.
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.
If you cannot afford to get a proper gait analysis completed, having someone observe you on a treadmill from behind will give you an idea if you are an overpronator. It is possible to tell without
observing directly whether you are likely to be an overpronator by looking at your foot arches. Check your foot arch height by standing in water and then on a wet floor or piece of paper which will
show your footprint. If your footprints show little to no narrowing in the middle, then you have flat feet or fallen arches. This makes it highly likely that you will overpronate to some degree when
running. If you have low or fallen arches, you should get your gait checked to see how much you overpronate, and whether you need to take steps to reduce the level to which you overpronate. Another
good test is to have a look at the wear pattern on an old pair of trainers. Overpronators will wear out the outside of the heel and the inside of the toe more quickly than other parts of the shoe. If
the wear is quite even, you are likely to have a neutral running gait. Wear primarily down the outside edge means that you are a supinator. When you replace your running shoes you may benefit from
shoes for overpronation. Motion control or stability running shoes are usually the best bet to deal with overpronation.
Non Surgical Treatment
Podiatrists are trained to effectively detect and management over-pronation. You can get a referral to a podiatrist from your GP if you are presenting with the pain typical of over-pronation, or you
can seek private podiatric care in anyone of several registered and accredited practices across the country. Your podiatrist will examine your foot and its shape to determine whether or not
over-pronation is the cause of your pain. If your podiatrist determines that it is a problem with arch support that is giving you trouble, then they can effectively remedy that lack of support with
Exercises to strengthen and stretch supporting muscles will help to keep the bones in proper alignment. Duck stance: Stand with your heels together and feet turned out. Tighten the buttock muscles,
slightly tilt your pelvis forwards and try to rotate your legs outwards. You should feel your arches rising while you do this exercise. Calf stretch: Stand facing a wall and place hands on it for
support. Lean forwards until stretch is felt in the calves. Hold for 30 seconds. Bend at knees and hold for a further 30 seconds. Repeat 5 times. Golf ball: While drawing your toes upwards towards
your shins, roll a golf ball under the foot between 30 and 60 seconds. If you find a painful point, keep rolling the ball on that spot for 10 seconds. Big toe push:
Stand with your ankles in a neutral position (without rolling the foot inwards). Push down with your big toe but do not let the ankle roll inwards or the arch collapse. Hold for 5 seconds. Repeat 10
times. Build up to longer times and fewer repetitions. Ankle strengthener: Place a ball between your foot and a wall. Sitting down and keeping your toes pointed upwards, press the outside of the foot
against the ball, as though pushing it into the wall. Hold for 5 seconds and repeat 10 times. Arch strengthener: Stand on one foot on the floor. The movements needed to remain balanced will
strengthen the arch. When you are able to balance for 30 seconds, start doing this exercise using a wobble board.