The Key Mechanism of Human Bipedal Walking and Running Revealed

According to a biomechanics study published online in the British journal Nature on the 26th, the United States, Japan, Britain and other countries joint team for the first time to uncover the human bipedal evolution of the formation of a unique foot bow to allow humans to walk and run the key mechanism, this discovery deepens the understanding of human bipedal evolution, will directly contribute to the improvement of mechanical foot design, and thus for the ” Physical flexibility “robots pave the way.

The Key Mechanism of Human Bipedal Walking and Running Revealed

A diagram of the foot arch and typical load-bearing patterns. Photo: Nature

In the realization of elegant and natural walking, mechanical foot and robot performance has been less than satisfactory, gait movement coordination and mechanical foot dexterity, has also been a problem in the industry. But it’s easy for humans, who have evolved to form hard bows that are essential for effective upright walking, but strangely, the feet of other primates, such as chimpanzees, gorillas and macaques, are relatively flexible and flat. One question that biomechanics researchers have been debating is how the structure of human feet makes the feet hard. Most studies have focused on the inner vertical bow (MLA) from the heel to the foot, rather than the role of the foot bow (TA).

To study whether TTA makes bipedal hard, the team tested human bipedal bending. The results show that more than 40% of the hardness of the foot comes from TTA. Folding a piece of paper from the middle makes it stiff vertically, and TTA does a similar effect on the foot.

The researchers also studied the evolution of TA tas in a variety of primates, including extinct ancient humans, and found that only the genus fully evolved to form MLA and TTA.

These findings suggest that the two adjacent archs work together to create hardness in the foot longitudinal. In addition, human foothasage has evolved in many stages to allow humans to walk and run efficiently.

In a press and opinion piece accompanying the paper, researchers Glenn Richterwalker and Luke Kelly of the University of Queensland in Australia said the mechanism would clarify that the future would be directly used for mechanical foot, human-footed prosthetics and the design of leg-carrying robots.

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Interestingly, in the physical world, seemingly small obstacles can get powerful machines into trouble and inevitably encounter real-world challenges that can hardly be assumed in advance with mathematical models. Over the past few decades, engineers have also been trying to guide the physical activity of machines and robots through predictive mathematical model software. However, this method has proved ineffective when used for very simple tasks such as walking on robotic limbs. Therefore, only a better understanding of human body movements such as fish to water, it is possible to achieve a more fluid mechanical movement, perhaps, mechanical “life”, that starts with bionics.