A photo from open sources
Researchers at Boston University found that in on average, every 13th person on Earth can easily climb trees, as it has bending feet, like a chimpanzee. Most history and biology textbooks tell us that the foot of modern man is almost flat and does not bend that allows us to move effectively on the ground, but interferes cleverly to climb trees like a chimpanzee. Many primates meanwhile use the lower limbs as second hands, clutching their feet in branches. To prove otherwise, Dr. Jeremy DeSilva (Jeremy DeSilva) and Simone Gill asked 400 people to walk barefoot at the Boston Museum of Science. IN this time the movement of their feet was filmed on camera. It turned out that in about 8% of people, the midfoot has unusual flexibility, comparable to that of monkeys living on trees. Detailed report about the study appeared in the American Journal of Physical Anthropology. In connection with the current discovery, it is worth mentioning another study, the results of which will also be published soon. Professor Robin Huw Crompton from the University Liverpool discovered that extraordinary foot flexibility can meet even more often than Jill and DeSilva think. What does it mean extraordinary flexibility? This means that the foot can bend at pads of the foot and in the middle of the distance from the pads to the heel. At of all people in this place is a joint, but most ligaments do not allow him to move freely. Some people the ligaments are softer, which allows you to bend the foot in an unusual way, although they don’t even pay attention to it. You can identify this with close-ups when bending when walking becomes apparent. “I never cease to be surprised at this,” adds DeSilva, noting that differences in gait in ordinary and not quite there are no ordinary people. Crompton believes flexible feet could stay in our family ever since we separated from our ancestors climbing trees. The remaining features were perplexed by the way. Perhaps extraordinary flexibility helps us with certain circumstances, Crompton believes. “For example, our work showed that it’s important when the speed changes unexpectedly, “says he. DeSilva, however, believes that excessive flexibility interferes with effective walking. He plans to test this hypothesis in the future. Maybe, the discovered “flaw” reappeared in people later, after branches from the branch of ancestral primates. “It seems to me that we have now more options appear because shoes change anatomy stop, “DeSilva concludes.