To what extent is the soles of shoes wear?

Madrid, Sep 15.(Edizions) -

Shoes soles are made of various materials.The most common is that they are of different types of rubber, although we can also find them of natural materials such as leather in some dress shoes.Your wear can entail a series of injuries that we must know.

"Walking is a gesture that we repeat thousands of times and it is clear that our way of treading directly influences the wear of shoes soles.In fact, analyzing the wear of the sole we can get a fairly precise idea of the way of stepping on a person and whether this way of stepping is correct or incorrect, "the Sports Podiatologist Víctor Alfaro, CEO, CEO, CEO,of podoactive clinics.

This expert points out that the usual thing in a person who has a normal march is that the shoe sole wear more through the area of the external heel and in the first finger area.

"This is because at the first moment of the pass (what we call the first 'rocker of the march') the foot contacts the ground through the outer zone of the heel.We technically say that the foot enters the soil 'supinating', that is, supporting more through the external area, "adds the collaborator of the Spanish Olympic Committee and the Spanish Paralympic Committee.

He then says that the foot begins to pronar, that is, that the foot is moving the load inwards (it is flattening) until all the foot is resting on the ground (this is the second 'rocker of the march');And finally, take off, which must be produced by the first finger (that is the third 'rocker of the march').

"The first finger is the one that performs the propulsion work in that takeoff and for that reason the usual thing is that with the use that area is wearing more.We are talking about the wear in the outer side zone of the heel and the first finger area is normal, provided that it does not occur in a period of time too short, "says the first podologist of the first Real Madrid CF team.

Moreover, Alfaro argues that when a patient has a greater than normal supination (for example, it is very common in cavos feet), wear in the external area is usually excessive and a correction should be sought, since if not correcting itIt can generate different pathologies (especially in the knee).

With this, this podiatologist implies that if the areas that are missed slightly more with the use are those of the external heel and the first finger zone we can consider that it is normal.

Now, he warns that if the wear is produced either in those areas in a very short time space, or in other areas of the sole, it is important to consult with a specialist: "For example, wear the internal zone of the heelIt is a clear indicator of a pathological march that we must correct to avoid various pathologies both in the foot and in the knee mainly ".

In the opinion of the Director General of Podoactiva Clinics, given any wear and tear that has previously been classified as normal, a podiatrist should be used to have the necessary technology to carry out a correct study of the footprint, both in static situationas dynamics.

"Today we have systems such as pressures, film analysis systems in 4D, 3D scanners, high speed filming, among others, which help us to be able to make very precise diagnoses of the march and to be able to seek thebest solution in each case, he affirms.

In fact, he warns that it can lead to the risk of injury to wear footwear with worn soles, putting some examples: "If there is excessive wear in the outer area of the shoe we have many more possibilities of suffering for example ankle sprains or face injuriesinternal knee (chondropathies, meniscopathies, etc. on the inside of the knee).If there is excessive wear around the inner zone of the sole we are more likely to suffer injuries such as bunions, metatarsalgia, plantar fasciitis and pathologies of the outer face of the knee (chondropathies and meniscopathies on the outer face of the knee) ".

The sole of athletes

On the other hand, the sports podiatrist attracts attention to the fact that it is important to understand that it is possible that a sole has lost its damping capacity but that, instead, we do not see it very worn out.

"This is especially important in the sneakers.In runners we advise the shoe change at 800-1.000 kilometers of use.Sometimes we see shoes that, despite carrying a significant number of kilometers, the wear is not appreciated but instead when tests are carried out in the laboratory we can verify that they have lost their damping capacity so that their use for running can be veryharmful to the joints, "says Víctor Alfaro, general director of Podoactiva Clinics.