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The technology in the shoe

technology in the shoe

Now let's see what we have under our precious feet.

We try hard though to examine the shoe in all respects, the shoe is divided into three main parts: outsole, midsole, outsole.


Sole:

The sole or tread is the part that is in direct contact with the ground, it is composed of a blend of rubbers with various inlays just like the tires of cars, for example, each house offers a different composition to best suit the terrain and have the best possible grip for various sports activities, and various land on which must be used. In the running shoe soles with cleats can find more effective and less incisive for the dirt to asphalt, unlike athletic shoes are also used where the spikes.
A good sole has now present in the forefoot area so-called flex grooves that allow in 'final stage of the roll better mobility of the same, ie in the central part of the media, the sole is absent even in some models, leaving room all'intersuola you or thermoplastic substrates, this to reduce the weight of the shoe.
The thermoplastic media created primarily with the adidas torsion system, allows the foot during the transition from heel to forefoot load to have a more stable support possible, I mean, consider the rolling of the foot in running, the heel touches the ground a called A and the forefoot of course will touch a different place called B, if the ground is not regular (potholes, lack of asphalt, rough road) could be that the support points B and A are not the same level, if it were the sole this entire runners feel the passage of the oscillations and thus instability, the thermoplastic support remains as independent as possible the movement of the heel than the forefoot, improving adaptability on the ground and hence stability. In many good soles in heel forefoot as well as points in high-impact tire compound has a good percentage of carbon, a substance much more resistant than others, are always at the first impact of the heel and metatarsal area.


Midsole:

The midsole is the central part of the shoe, it is placed between the sole and upper, the manufacturers focus most of their research and their own efforts to improve this element which lies at the heart of the whole shoe. In fact in the midsole are inserted all the modern technology relating to 'cushioning and motion control factors.
The midsole is composed of calls depending on the tire building process or phylon EVA (ethyl vinyl acetate) rubber is not compact, in fact if you touch is a bit 'soft inside because it contains the porosity of the particles which reside 'air, because the midsole in running shoes at low cost by itself already keeps a discreet damping coefficient.
What we find inside: in the more technical models are inserted in the heel and cushioning the medial dell'intersuola, the manufacturers of differ mainly because of the philosophy of their shock-absorbing materials, no one uses the same systems, this is just to let you know in this context that defy reality.
Nike uses the air, air zoom, duralon often present in the sole, using the adidas adiPRENE and adiPRENE plus the famous gel asics, mizuno wave system, the system grid sauconi reebook dmx, Hexal and more.
All studies done just to improve two key parameters of the shoe, one dependent on the other, cushioning and responsiveness.
What are cushioning and responsiveness. A material that absorbs in the absolute sense is a material that absorbs a bump pocketing all the energy it receives, to realize we do a very practical example, suppose you drop a ball of iron in the sand, at the time of the fall, the ball will sink without bounce, this is because the damping factor is almost up, but if you drop a hard surface even if this trifle for a leap with rebounding, this is because the damping factor will be close to zero and the energy created by the impact the soil will tend to affect the ball itself, this effect is defined as reactivity.
From this example shows that the damping is inversely proportional to reactivity, the body absorbs more and less is able to return energy (body less reactive), is less a body absorbs the energy created will be returned (increased reactivity). Of damping in the shoes that are designed trying to continuously improve the performance of these two major factors, the cushioning you need to decrease the excessive load on the point of impact of the foot (equal to three times the weight of the body) and restitution from the same materials to promote energy received during the roll especially when pushing energy as possible to the rider, trying to relieve stress and muscle loads at the expense of skeletal muscle.
Why running on sand is extremely tiring when you are standing on their feet the maximum cushioning and to perform the next step is not getting any pressure from below we must rely solely on the strength of leg muscle overloading our body. In more technical shoes you prefer to apply damping materials in the heel and forefoot more reactive materials. Midsole intersect the first mentioned also supports lightweight thermoplastic giving more control, plus the same double-density midsoles are made of, what is it, with dual-density soles arch height have a rubber compound harder for those that have problems such as pronation and considerable weight. from 85 kg up. If the athlete usually takes the longest stages of the half-hour training could significantly improve the control of his movement.


Upper:

The uppers are constructed with different materials depending on the needs that characterize every sport, to use an upper improper for the sport can create problems, in fact a bad sweating at a very intense training leads to excessive sweating foot, this results in most cases the appearance of sores or blisters. Especially if the shoe in question is a little 'bigger than the ideal size. I advise you about this not to underestimate either the purchase of a sock properly, avoid terry socks, these accumulate sweat keeping your feet wet, even more amplifying the effects described above.
The upper part is for the runner to be reckoned with, let's dall'allacciatura, there are shoes that use integrated lacing, laces passing through the holes in turn pull integrated in the upper right of the bands that enhance the sense of fit, making them feel athlete's foot is one with the shoe. A thousand times even more convinced when the runner to tie the shoe fit once takes the ends of the laces and pulls them to him and then make the knot, totally wrong!
Before pulling the ends must pull the strings from the beginning, slowly rising from the tip to the ankle, the only way the upper is attached properly to the instep. If you just pull the edges of the laces to get the feel of grip will tend to tighten the instep ankle blocking the main blood vessels that supply blood to the feet, causing numbness of the feet, lack of sensitivity, cold feet.
The paintings are created with which the uppers are lightweight for practicing sports such as running a unidirectional movement, in this case a shoe for the runner that has the nylon mesh honeycomb well-off improves the breathability of piede.o important. There are also climate-uppers fit (to maintain a constant temperature of the foot) or goretex to make it waterproof. In other sports where movement is multi-directional such as football, tennis, basketball, volleyball, are synthetic materials designed uppers different in some cases much more resistant to withstand the excessive stress.


Insole:

Do not underestimate the importance of the slab, are nowadays more and more technically maintained for the benefit of the athlete. There are slabs with an increase in the medial from the beginning in order to support the arch, have some of the hemispheres to stimulate circulation and massage the soles of the feet at the bottom are also integrated in the impact zones of the foot (heel and metatarsals) of tires with different density to further improve the damping of the impacts. Some are made ​​of rubber or latex materials systems also highly breathable to reduce the occurrence of odor due to sweating.