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Human foot not as unique as originally thought
Date:8/23/2013

that this is other than an aspect of normal healthy walking.

Dr Karl Bates, from the University's Institute of Ageing and Chronic Disease, said: "Our ancestors probably first developed flexibility in their feet when they were primarily tree-dwelling, and moving on bendy branches, but as time passed and we became more and more ground-dwelling animals, some new features evolved to enable us to move quickly on the ground.

"Our limbs, however, did not adapt to life on the ground anywhere near as much as those of other ground-dwelling animals such as horses, hares and dogs. Our tests showed that our feet are not as stiff as originally thought and actually form part of a continuum of variation with those of other great apes.

"We hypothesise that despite becoming nearly exclusively ground dwelling we have retained flexibility in the feet to allow us to cope effectively with the differences in hard and soft ground surfaces which we encounter in long distance walking and running. The next part of our study will be testing this theory, which could offer a reason why humans can outrun a horse, for example, over long distances on irregular terrain."


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Contact: Samantha Martin
samantha.martin@liv.ac.uk
44-015-179-42248
University of Liverpool
Source:Eurekalert

Page: 1 2

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