There is a popular saying recently: "7 cm is the health limit of high heels." So, is there any scientific basis for this statement? How bad will high heels be to the human body?
Some experts have analyzed that the "health standard" of high-heeled shoes is below 7 cm, and more than 7 cm becomes a torture device for both feet.
Doctors at Harvard Medical School in the United States made a study on the influence of high heels on the knee joint. The subjects were 20 healthy women with an average age of 34.9 years, an average height of 65438 0.62 m and an average weight of 59.65438±0kg. Each participant chooses a pair of high heels with a heel height of 7 cm. The torsion of bilateral knee joints was measured when walking barefoot and wearing high heels, and the values were statistically analyzed and compared. The results show that the knee torsion in high heels is 30% higher than that in barefoot walking. If the heel height decreases, the torque of the knee joint also decreases, but it is higher than that of barefoot walking.
According to Xu Hui, deputy chief physician of orthopedics in beijing jishuitan hospital, wearing high heels will make people's body center of gravity lean forward. Being in this state for a long time will change the normal stress of knees, hips, waist and other parts, causing pain in related parts; Moreover, the normal load of the arch will also change, and the center of gravity will lean forward, which will inevitably increase the load of the forefoot, causing foot pain and foot disease. Director Xu said that high heels of any height will cause stress changes in the arch and other parts, but it is only a matter of the degree and size of the changes.
On the other hand, the structure of human feet is not exactly the same. No matter how high the high heels are, as long as people wear them properly, they will not cause foot pain and diseases.
For people with flat feet, it is good to pad the arch properly. Director Xu said that for ordinary people, less than 4 cm is less harmful to people's health.
According to an article published in Epidemiology and Public Health by a professor from Oxford University, 55.2% of arthritis women wear high heels, while 67. 1% of healthy women wear high heels. Therefore, the professor said: "Traumatic joints, excessive smoking and overweight are the main culprits of joint diseases. In this case, it is unreasonable to blame high heels for joint diseases. "
Director Xu Hui said that the height of shoes varies from person to person. As long as the shoes you wear are suitable for you, your feet won't hurt even if you are tired from walking, and you don't have to choose the height of the heel deliberately.
Some doctors also suggest that when wearing high heels, you can make a soft insole at the pressed place such as the forefoot or heel to reduce the pressure on the soles of your feet; The heel height of high-heeled shoes should not be too high, and the heel should not be too small, otherwise it is difficult to stably support the weight and it is easy to sprain the ankle. Toes should be slightly looser to leave more room for soles and toes. Don't wear high heels every day. Women who need to walk for a long time may wish to prepare a pair of comfortable flat shoes in the office and wear them alternately with high heels to reduce local fatigue.
In addition, Director Xu also reminded Shao girl friends, a teenager, that it is even more inappropriate for adolescent women to wear high heels, because women's foot bones are mature at the age of 15- 16. Wearing high heels too early makes the foot bone complete the ossification process according to the angle of high heels, which is prone to deformity. The pelvis is usually not formed until the age of 25. Pelvis is an important structure for human body to transmit gravity. The increase of the load of the shapeless pelvis will lead to the narrowing of the pelvic opening, which will directly affect the delivery in adulthood.
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