Analysis Of The Relationship Between Heel And Health

Shoes are indispensable necessities for people.

It can not only enhance the taste of a person, but also is closely related to our health.

From the comfort and simplicity of flat shoes to the seduction and fashion of high heels.

Shoes are indispensable to modern life.

The ancients said: the journey of a thousand miles begins with a single step.

If you don't have shoes, it's unthinkable.

If we mention the science of shoes, the first thing we must think about is sports shoes.

Although in 1960, Ethiopia marathon athlete bebbe won the world champion, but with the development of sports technology, the era of barefoot Daxian has gone forever.

In modern competitive sports, sports shoes are boots and equipment.

The development of sports shoes by manufacturers is no less than the arms race. It can be said that the cost of a pair of running shoes can be as high as tens of thousands of dollars.

The scientific design of sports shoes is reflected on the sole of shoes. Different sports and even different venues will have different requirements for the sole. Therefore, a lot of sole parts can be freely replaced to prepare for a rainy day.

Liu Xiang, a famous hurdler, made a decision to replace his spikes with short spikes before he entered the competition. He also got satisfactory results and called long nails as his secret weapon.

As the saying goes, life lies in sports.

Ordinary people's standing and walking is also a sport. Should they have corresponding health equipment? Because people are upright positions, their weight is all borne by two feet.

When standing and walking, shoes and feet must be combined into an organic whole.

Therefore, the science of ordinary people's shoes is also the sole of shoes. Unscientific design is not only bad for daily life, but also harmful to health.

A typical example is a series of foot diseases caused by high-heeled shoes.

At the same time, high-heeled shoes also directly affect the health of the spine.

Therefore, doctors are particularly reminded of low back pain, cervical spondylosis patients, we must pay attention to the choice of shoes, avoid wearing high heels.

This is a major issue related to human health. Therefore, the study of living shoes is far more important than the research of sports shoes.

The relationship between people and shoes is like the relationship between buildings and foundations.

Any building will not take lightly the design of foundation. The building society also set up a foundation foundation branch to conduct in-depth research.

But for shoe design, it has never been so rigorous.

The backwardness and prejudice of traditional concepts seriously restrict the development of shoemaking research, and cause more health problems.

Clinical data show that "foot diseases" are congenital foot defects, many of which are acquired acquired foot diseases.

It is estimated that around 1/4 of the world suffers from varying degrees of foot disease.

The medical community has confirmed that most foot diseases are directly related to shoes.

And a lot of data confirm that barefoot is more conducive to the health of feet.

That is to say, from the perspective of foot health, shoes are harmful and useless.

For a long time, no real cause and countermeasure had been found, so we had to call it "civilization disease".

This is undoubtedly a great irony for highly developed modern science.

Love hate mixture

High heeled shoes are the love of fashionable women. They are beautiful and beautiful like artworks.

But at first, the feeling of wearing it must be gingerly and treading on thin ice, like the song, "high heeled shoes step on bumpy steps".

With the pain of torture, all kinds of lesions follow.

In terms of shoes and health problems, high heeled shoes are the most typical and prominent damage to health. They are mainly manifested in the following aspects.

Forefoot disease.

Common forefoot diseases such as hallux valgus and interphalangeal neuroma are usually associated with excessive stress.

High heels make the center of gravity move forward, and the power of the sole increases exponentially.

Once these two diseases are formed, walking ability will be greatly affected. Even wearing shoes normally is very difficult.

In addition to surgery, there is no better solution.

Flat foot syndrome.

Plantar fascia laxity is an important cause of flat foot disease. It is located at the sole of the foot, maintaining the stability of the arch as the bowstring.

The higher the heel is, the longer the rear arm of the arch is, the greater the tensile force (tension) of the plantar fascia.

If the tension is too long and the plantar fascia is loose, the arch will decrease, which will cause flat feet.

The relationship between the height of the heel and the tensile force of the plantar fascia can be clearly reflected from the structure of the sole.

Many shoes have a steel plate called "hook heart" in the foot position (equivalent to the position of the plantar aponeurosis).

It is used to strengthen the sole of shoes.

The higher the heel is, the higher the strength of steel hooks is, otherwise the soles will be easily broken.

The higher the heel is, the more the sole needs to be reinforced by steel hooks, and the human plantar fascia is not strong enough. Is this not very scary?

Ankle injury.

Ankle injuries are commonly known as "sprained feet". Wearing high heels is a common practice.

In normal people walking and exercise, the ankle tends to produce inward turning force, and the outer side of shoes is always worn out first.

People themselves are constantly adjusting this turnover force to maintain balance, but after wearing high-heeled shoes, the adjustment ability will be weakened and easy to cause sprain.

The higher the heel is, the greater the potential energy to turn inside, the more serious the injury will be.

Low back pain and cervical spondylosis.

The main reason for lumbago and cervical spondylosis is the excessive curvature of the spine, because the spine is composed of multiple vertebrae. The contact surfaces of the two vertebrae are nearly flat.

When the posture is tall and straight, the contact between the vertebrae is between the surface and the surface, and the force is dispersed and not easy to damage. When the spine is bent, the contact surface between the vertebrae becomes smaller, the force tends to be concentrated, and even concentrated to a point. The pressure increases rapidly, which is easy to damage the vertebrae.

High heel shoes make people's center of gravity move forward too much, which will inevitably cause the pelvis to tilt forward, the curvature of the spine to increase, the centralization of the lumbar vertebrae and the cervical vertebrae, and the formation of injuries easily. The accumulation of such injuries will eventually lead to lumbago and cervical spondylosis.

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Apparently right but actually wrong

For a long time, heel shoes have always been considered the most healthy, and have no adverse effects, and become the two poles of high-heeled shoes.

In the footwear industry, it is regarded as the golden rule. Designers try to make their products conform to the standards of middle and high standards, so that they can sell well.

Consumers often choose heel shoes for health reasons.

Women who are deterred by high-heeled shoes are also fond of the same kind of middle heeled shoes that can also be swayed.

In this way, the middle heeled shoes naturally become the mainstream products of footwear.

But this theory is sometimes doubting. Heel and heel shoes are added at the back of the sole, though highly different, but it is difficult to draw the absolute limit.

For example, 3.5 cm high heel, some people think it is high-heeled shoes, some people think it is the middle heel shoes, and later has the "middle high heels" pitional name.

Since there is no absolute boundary, how can it have the opposite effect? High heeled shoes are healthy enemies with disadvantages and no benefits. Just a little shorter middle heeled shoes are perfect angels of health?

The core of heel's health theory is that it can make the force of the plantar even.

It seems very simple to explain: high heels make the sole of the foot stronger than the heel, which is not conducive to health.

Only the middle heel shoes can make the force of the feet even, so it is the best.

In fact, as long as you look at the anatomy of the foot, you can see that the structure of the foot is obviously uneven, the calcaneus is thick and firm, the muscular ligament is strong, and the bones, muscles and ligaments of the front foot are much weaker.

From the point of view of human mechanics, the calcaneus skeleton is approximately superimposed vertically, the structure is stable, the gravity conduction is smooth, and the bones of the front foot are almost arranged horizontally, and the bearing must be maintained by the strength of the muscles and ligaments, which belong to elastic structures, which are easy to deform and are not suitable for bearing.

In a word, no matter from which angle, the forefoot's bearing capacity is far less than that of the back foot. It is not reasonable for the front and rear feet to bear the same pressure.

It will definitely damage the weak parts, which is also the reason why foot diseases are mostly found in the forefoot.

Look at the so-called second advantages of middle heels, that is, slowing down the concussion and protecting the spine and brain.

The disease caused by vibration is called vibration sickness. It reduces the function of the nervous system, conditioned reflex is inhibited, nerve terminals are damaged, and vibration and pain functions are significantly reduced.

It is characterized by numbness, acerbity, pain, and feeling of ants. Serious skin bruising, cyanosis, muscle weakness and muscle atrophy are also serious.

But vibration sickness belongs to occupational disease. It is the result of long-term stimulation of human body caused by high frequency mechanical vibration.

Motor vehicle drivers, such as tractor drivers, can vibrate at frequencies of up to 50 times per second and 100~200 times with high speed gear.

This vibration and the vibration caused by human motion are two completely different concepts.

In order to avoid the panic of vibration sickness, the international standardization organization 108th (mechanical and vibration) Technical Committee fourth (human vibration response) branch specially studied the impact of vibration on human health, and finally concluded that walking and running are natural ways of human movement.

Especially when it comes to the work done by the muscles, it can be considered that the vibration stress should not have any harmful consequences under normal circumstances. In order to obtain the indication of the vibration characteristics of the human body in upright posture, it is beneficial to compare the reaction of people induced by vibration when walking or running.

Since this vibration is beneficial, why should middle heeled shoes be prevented?

Interestingly, the first step to soles the heels is not to walk, but to ride.

When riding on horseback, the heel can keep feet firmly stuck to the stirrup, and it can stand up and use weapons when fighting.

With the conquest of the nomadic people everywhere, heel shoes have gradually spread and are widely accepted.

This is for practical needs, and is the sole trusted function of heels.

From the point of view of human body, there are two kinds of heel and heel shoes.

According to scientific classification, heeled shoes and high-heeled shoes should be known as heels.

If high heeled shoes are particularly harmful to human body, the middle heeled shoes are moderately harmful, especially for the developing adolescents and the physically and mentally aging middle aged and elderly people.

After the clarification of the problem of middle heel shoes, at present, the sharp increase of foot disease and the knot of "civilization disease" have been solved.

The damage to the middle heels is not as striking as that of high heels, but accumulated over time will eventually lead to illness.

What is even more worrying is that this effect is still increasing.

In recent years, the sports shoe manufacturers have launched new sports shoes with middle heels. Under the delusion of the heel health theory, more and more people have switched to sports with their middle heels, which is very dangerous.

I hope this question can be raised and clarified, which will arouse people's rational thinking.

Middle heels and high heels are collectively referred to as heels.

Relative to the role of the human body, there is no essential difference between the two! {page_break}

Children of nature

Since the heels are higher and more harmful, is there no harm to flat shoes or barefoot with heels? A lot of medical practice shows that barefoot is more conducive to foot health than wearing shoes, but the skin is easily damaged.

Flat shoes can obviously make up for this deficiency, and also maintain the mechanical state of barefoot. This is also the most natural and natural state of human beings, which is consistent with the human body's mechanical structure and movement rules.

But in recent years, many articles have made trouble for flat shoes. They think that wearing heels is too heavy for the heel and easily cause heel damage. Besides, the poor cushioning function of flat shoes will affect the health of the spine and brain.

Like the health theory of heels, there is no scientific basis for this.

In fact, when standing on barefoot and flat shoes, though the heel is larger than the sole of the foot, it fits the mechanical structure of the foot and does not damage the heel.

The theory has been analyzed before. Now let's take a look at the actual situation.

Foot injuries caused by excessive exercise are known as "March fractures" in clinical practice, also known as "walking feet".

He was named because he was a walking soldier.

The disease is commonly seen in runners, race walkers, gymnasts, textile workers and porters.

Its main damage is the metatarsal bone in the forefoot, especially the two or three metatarsal bone and its surrounding soft tissue.

This also proves from practice that heel's bearing capacity is much larger than that of the sole, because the front foot is always damaged first.

If you wear heel shoes, the appearance of forefoot injuries will undoubtedly be earlier and more serious.

The heel is much stronger than we thought.

Most of the injuries are caused by accidental injuries or accidents such as falling down, accompanied by multiple fractures of the spine and pelvis, which are not sports injuries.

People who wear heels regularly and occasionally wear flat shoes may cause heel pain. Patients who stay in bed for a long time are more obvious. This is the result of long-term lack of weight-bearing in the heel and the atrophy of plantar fat pad, which will soon disappear after adaptation.

Look at the disadvantage of shock absorption.

Authoritative research findings have confirmed that vibration caused by human movement is not only harmless to health but beneficial.

When we engage in vigorous exercise and heavy physical labor, the shaking must be much larger than that of everyday life, and are not all flat shoes? If the flat shoes really hurt the spine and brain, then how can the early humans who walk barefoot survive?

In reason and in shoes

Then, is there any kind of shoes that are beneficial to human health in mechanics? Based on the above analysis, we will naturally think of shoes with high and low rear height. We call these shoes "negative heels" for the time being.

As a matter of fact, negative shoes have not been conceived for a long time, but have been in the market for several years.

There are more kinds of shoes and more manufacturers. The following three kinds are more representative: the earth shoes in the US, the slimming shoes in Hongkong and the training shoes in Beijing.

These three kinds of shoes have basically the same function -- correct the posture of the human body and make the spine straight.

"Earth shoes" originated from the feeling of a yoga instructor. When she traveled by the seaside, she found that the local people's posture was extraordinarily tall and strong.

In her observation, she paid special attention to the footprints of the locals staying on the beach: the heel is particularly deep.

Thus, a shoe with high and low shoe sole is made, and it feels very tall after wearing. It also has the wonderful effect of "lotus seat" in yoga practice.

It is also comfortable to walk, as if it is a general enjoyment of walking barefoot on the beach.

The earth shoe has been very popular in the United States, and more than 500 sales terminals are spread all over the country, and exported to many countries and regions.

Western countries are warming up the walking fitness craze, but also provide a broad market space for the earth shoes.

The inventor of "slim shoes" is the senior female supervisor of a footwear international trading company in Hongkong.

She found that the soles with high and low rear height not only can be upright, but also have a significant weight loss effect.

This has also aroused great interest among scientists. For the purposes of scientific research, Professor Hong Youlian, Professor of sports science, Chinese University Hong Kong (vice chairman of the international sports biomechanics Society) and Dr. Li Jingxian, director of human sports laboratory, have jointly conducted research and testing on fitness shoes.

6 items were tested through photographic recording, electromyography, energy consumption, respiration, heart rate monitoring and plantar stress analysis.

Research has proved that shoes with high and low back shoes can really make the trunk stand upright, strengthen the back muscles and help correct the standing and walking posture.

"Slimming effect" has also been fully confirmed, so fitness shoes also known as "thin body fitness shoes."

At the same time, it was accidentally discovered that "when walking on this kind of fitness shoes, the change of the posture of the human body makes the impact force of the foot contact with the ground less", which undoubtedly has a protective effect on the foot.

The developers of body training shoes have been studied theoretically and studied from various angles and published many academic papers.

Body training shoes, as the name suggests, are used to beautify the body.

The ballet dancer's posture is undoubtedly the most perfect, especially because their torso is much more direct than the average person.

The industry called it "unnatural posture", which is the first condition for ballet dancers and the highest state of human beauty.

Ballet physique training requires that both feet must be opened outward 180 degrees in a "one" shape, and after the center of gravity moves to the heel, people will form an abnormal upright posture.

The principle of the body training shoes is the same. Because the sole is high and low, it also forces the center of gravity of the human body to move to the heel.

In this way, people's standing and walking in daily life all have the meaning of physique training, and turn the body training into a part of life.

This method has been popularized as an educational material in dance circles, and body training shoes are more popular among body lovers, especially postpartum women, and they are called "body training methods for lazy people".

Friends who have not touched this kind of shoes, if interested, can also be verified by two small experiments: keep your body straight (for example, standing on the wall), understand whether the center of gravity is on the heel, stand on bare feet or wear flat shoes, and place a 2 centimeter thick book on the front foot, and feel the posture is higher than usual.

Body training shoes also have medical significance.

As we all know, the root cause of lumbago and cervical spondylosis is the excessive bending of the spine. Correction is the most fundamental treatment. The physical training of healthy people is the treatment for patients with low back pain and cervical spondylosis.

The rehabilitative effect of body training shoes can be explained in a popular way.

Surgeons usually advise patients to take "backward walking" exercise, which proves to be effective.

Like the principle of physique training, the function of backward walking is to move the center of gravity back to the heel.

But walking is restricted by many conditions, such as road conditions and so on, and it is easy to fall down.

It is because of these hidden dangers that the exercise is difficult to sustain and the effect is naturally limited.

Body training shoes solve this problem, which limits the center of gravity of the human body to the heel for a long time, so that even when walking forward, it has the function of recovering backward.

This latest method of rehabilitation for lumbago is called the lumbago foot therapy in medical circles.

Some people may worry that walking or wearing heels is harmful to heel health, which is not necessary.

Take ballet dancer as an example, ballet has many movements, but the posture of the feet is only five. It is called the five position. Every foot requires both feet to be fully outward (horizontal).

At this point, the weight of the whole body almost falls on the heel, which is more stressed than wearing the negative and heel shoes, and at the same time, it needs intensive exercise.

Even so, the ballet dancer's heel will not be damaged.

In the history of ballet for hundreds of years, there is no record of heel damage.

So, this worry is unnecessary. The center of gravity is at the heels.