I have tried to research why this happens but i have had no luck, My right shoe shoes excessive drag on the outside part , the heel drags even though i pick up my feet when i walk . it feels as my foot slides as it lands. what could be the cause of this?
Catching toes and heels, or shuffling soles is pretty common. Much of the time, it is a "sensory" sign and caused by failures in proprioception. Proprioception is sense that provides feedback on the status of the body. It tells us if the body is moving and where parts of the body are located in relation to each other. It comes from muscle tension senors and joint position sensor mixed with balance and motion data from the inner ears. It is a very complex system and the multiple signals are processed by the cerebellum.
So if you think you are picking up your foot, that may be true, but the sensors are not getting their signal back to the cerebellum to let your motor cortex know that the leg is high enough or one of the other data sources is messed up. I sometimes "scuff" my foot flat across the ground and catch my toe on sidewalk cracks or thresholds.
It is actually one of the more difficult symptoms, because it can be hard for the doctor to detect or evaluate. It is also one of the number one causes of "falls." This is one of the things that I have found good neurologists always seem to ask: "Have you fallen in the last six months?" or "Have you fallen since your last appointment?"
I was having this issue with my right foot but I had ankle pain and popping with it. The outcome for me is that I have a brace that keeps my foot where it is suppose to be and also springs my foot up when I walk. It works pretty good.
Is your brace an Ankle-Foot Orthosis (AFO?) They are usually used to prevent "foot drop" in MS patients. This can happen when the bigger muscles in the back of the lower leg over-power the two smaller muscles in the front and tend to pull your toes and foot down.
I have foot drop on both sides, and have been fitted with custom braces (AFO's). It can be caused when the peroneal nerve demylenates causing the foot to not receive the message to lift the foot. It may also be caused when the lesion in the brain is located in such a place that the message to lift the foot never gets to the foot.
I have never heard of the overpowering of larger muscles or the stretching of tendons causing it.
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