Gait adaptability training is affected by visual dependency.

Experimental Brain Research
Rachel A BradyJ J Bloomberg

Abstract

As part of a larger gait adaptability training study, we designed a program that presented combinations of visual flow and support-surface manipulations to investigate the response of healthy adults to walking on a treadmill in novel discordant sensorimotor conditions. A visual dependence score was determined for each subject, and this score was used to explore how visual dependency was linked to locomotor performance (1) during three training sessions and (2) in a new discordant environment presented at the conclusion of training. Performance measures included reaction time (RT), stride frequency (SF), and heart rate (HR), which respectively served as indicators of cognitive load, postural stability, and anxiety. We hypothesized that training would affect performance measures differently for highly visually dependent individuals than for their less visually dependent counterparts. A seemingly unrelated estimation analysis of RT, SF, and HR revealed a significant omnibus interaction of visual dependency by session (p < 0.001), suggesting that the magnitude of differences in these measures across training day 1 (TD1), training day 3 (TD3), and exposure to a novel test is dependent on subjects' levels of visual dependency. The RT...Continue Reading

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Citations

May 15, 2013·Proceedings of the National Academy of Sciences of the United States of America·Stephen E PalmerLilia R Prado-León
Dec 27, 2015·Experimental Brain Research·Nils Bury, Otmar Bock
Sep 22, 2015·Frontiers in Systems Neuroscience·Vincent KoppelmansRachael D Seidler
Oct 7, 2015·Frontiers in Systems Neuroscience·Jacob J BloombergAjitkumar P Mulavara
Sep 9, 2015·Frontiers in Systems Neuroscience·Ajitkumar P MulavaraJacob J Bloomberg
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