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. 2020 Oct 21;11:544559. doi: 10.3389/fphys.2020.544559

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Copyright © 2020 Hill, Hosseini, McLellan, Price, Lord and Kay.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Mean ± SD mean COP velocity (A), anteroposterior COP displacement (B), and mediolateral COP displacement (C) responses to 30 min level and downhill walking. ^∗Significantly different to baseline. ^†Significant vision effect.