The physics of human walking and considering the wider picture

Gorilla walking like a man. CC talkrational.org
A gorilla walking like a man. Photo by talkrational.org is licensed under CC BY 2.0

Impulsive ankle push-off powers leg swing in human walking
Susanne W. Lipfert, Michael Günther, Daniel Renjewski, and Andre Seyfarth
J Exp Biol 2014 217:1218-1228.

I love papers like this. The extreme level of detail people go to in the quest to discover is fascinating. The question that always comes to my mind is “What made them decide to research this in the first place?” Was it through trying to understand more about where humans come from or was it purely a mathematical and physical curiosity about how we walk? The beauty of science is that it is allowed to be curiosity driven – just like those papers and pieces of research which made it into the IgNobel Awards and have ended up being pivotal in their respective fields.

“Impulsive ankle push-off powers leg swing in human walking” is a rather complicated paper, full of mathematical terminology and notation, but if you can get through the equations you’ll discover a story that shows how human walking has been fine-tuned, linking this physical paper to fundamental questions of human origins. Continue reading “The physics of human walking and considering the wider picture”

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