RT Journal Article SR Electronic T1 People can learn new walking patterns without walking JF bioRxiv FD Cold Spring Harbor Laboratory SP 2020.04.02.021949 DO 10.1101/2020.04.02.021949 A1 Christine N. Song A1 Jan Stenum A1 Kristan A. Leech A1 Chloe Keller A1 Ryan T. Roemmich YR 2020 UL http://biorxiv.org/content/early/2020/04/03/2020.04.02.021949.abstract AB Humans can learn many new walking patterns. People have learned to snowshoe up mountains, racewalk marathons, and march in precise synchrony. But what is required to learn a new walking pattern? Here, we demonstrate that people can learn new walking patterns without actually walking. Through a series of experiments, we observe that stepping with only one leg can facilitate learning of an entirely new walking pattern (i.e., split-belt treadmill walking). We find that the nervous system learns from the relative motion between the legs – whether or not both legs are moving – and can transfer this learning to novel gaits. We also show that locomotor learning requires active movement: observing another person adapt their gait did not result in significantly faster learning. These findings reveal that people can learn new walking patterns without bilateral gait training, as stepping with one leg can facilitate adaptive learning that transfers to novel gait patterns.