U.S. Research Says: Running Shoes Change Human Running Pose

Ben Wang, January 29, when running, whether it is good or good running shoes?

Since the launch of running shoes, the debate on this issue has not stopped. Although researchers at Harvard University in the United States failed to give a conclusion, they found that running shoes did change humans' running posture.

This discovery was published in this week's issue of Nature.

Extensive investigation

When people run, each time the foot collides with the ground, it will bring an impact to the body. If the heel hits the ground first, it will bring more impact than the body weight several times. "It's like someone is holding a hammer and banging on your heel with two or three times the weight," the "Fun Science" website quoted Daniel Lieberman, a human evolution expert at Harvard University, reporting on the 27th.

Many shock absorbers built into the back of the running shoe can reduce this impact, but how do people who don’t wear running shoes reduce the impact on the body?

The researchers selected five kinds of people and counted their running methods. These five kinds of people are: U.S. professional athletes who have always worn running shoes; Kenyan athletes who are used to running barefoot when they are young, but now wear modern running shoes; once used as running shoes and now run into American runners who run barefoot; always wearing shoes and never Kenya runners across the shoe.

Finding differences

The researchers found that people who are accustomed to wearing running shoes usually run the heels first while running, even if they take off their shoes. Those who are used to running barefoot are the toes or the soles of the feet.

Lieberman and his colleagues compared the impact on the body when the heel or toe first landed. They found that the impact of the heel first brought to the body was great, and would be greater if no shoes were worn. In contrast, if the toe touches the ground first, it will hardly impact the body.

Researchers believe that light-footed runners reduce their impact with the toes first. They will focus more on the toes at each step, which means they will run lighter and have less impact. effect.

"We speculated that before high-cushion shoes were invented, people used to run in this way," Lieberman said.

Difficult to judge

Christopher McDougall published the best-selling book "For Running" in 2009, which promoted the "barefoot running" trend. In his book, he pointed out that barefoot running is more beneficial to the body. However, researchers believe that if people who are accustomed to running shoes suddenly “go back to nature,” they may not adapt to and damage Achilles tendon.

Lieberman said that there is no evidence that running shoes will increase the risk of injury, and there is no evidence that barefoot running can protect the body, so it is difficult to make a conclusion.

Kathy Kriging, a professor of sports medicine at the University of Virginia, once said that barefoot injuries caused by running on the surface of hard artificial objects. Lieberman said, however, that Kregan's conclusion is not correct because the toes touch the ground first and the body barely has to bear the impact. He said that people do not even have to worry about running on hard plates.

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