Newborn babies walk the walk

Infants strut a runway wearing electrodes to show how the walking reflex works

By Laura Sanders, 16:51 PM February 12, 2013

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Before you can run, you have to walk, and before you can walk well, you have to walk like a brand-new baby. A new study uncovers the logistics of newborns’ herky-jerky, Frankensteinian stepping action and how this early reflex morphs into refined adult locomotion.

In the study, electrodes on infants’ chubby legs picked up signals from neurons that tell muscles to fire, revealing that three-day old babies tense up many of their leg muscles all at once. Toddlers, preschoolers and a...

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