Arched feet didn't evolve to give us a spring in our step – but to
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Experts used to think the arch was a lever to propel the body forward, but now researchers believe it developed to help us walk on two feet
Evolution - The Telegraph
Running Cushion CFX - New Balance
Why human feet evolved arches—and what happens if you lack them
Human feet developed arches 3.5 million years ago - a 'key step' in evolution, Science & Tech News
Study shows humans may have evolved a spring-like arch to help us walk on two feet
Fast Feet: A Springy Step Helps Humans Walk : NPR
the great big toe, November 2019, Blog
9 Best Podiatrist-Recommended Walking Shoes For Older Adults
Tennis - Page 725 - The Telegraph
Golden Arches: Human Feet More Flexible Than We Thought : Shots - Health News : NPR
Why human feet evolved arches—and what happens if you lack them
Curved toes point to sore feet, the chaos of the knuckleball – Physics World
Evolution - The Telegraph
How can we determine whether our foot is flat or arched? What are some signs that indicate flat feet and high arches? - Quora
Shoes that curve up at the toe require less muscle work, study shows
