Journal article
Peripheral visual cues affect minimum-foot-clearance during overground locomotion
Gait & posture, v 30(3), pp 370-374
01 Oct 2009
PMID: 19628392
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
The importance of peripheral visual cues in the control of minimum-foot-clearance during overground locomotion on a clear path was investigated. Eleven subjects walked at their natural speed whilst wearing goggles providing four different visual conditions: upper occlusion, lower occlusion, circumferential-peripheral occlusion and full vision. Results showed that under circumferential-peripheral occlusion, subjects were more cautious and increased mini mu m-foot-clearance and decreased walking speed and step length. The minimum-foot-clearance increase can be interpreted as a motor control strategy aiming to safely clear the ground when online visual exproprioceptive cues from the body are not available. The lack of minimum-foot-clearance increase in lower occlusion suggests that the view of a clear pathway from beyond two steps combined with visual exproprioception and optic flow in the upper field were adequate to guide gait. A suggested accompanying safety strategy of reducing the amount of variability of mini mum-foot-clearance under circumferential-peripheral occlusion conditions was not found, likely due to the lack of online visual exproprioceptive cues provided by the peripheral visual field for fine-tuning foot trajectory. (C) 2009 Elsevier B.V. All rights reserved.
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Details
- Title
- Peripheral visual cues affect minimum-foot-clearance during overground locomotion
- Creators
- Valentina Graci - University of BradfordDavid B. Elliott - University of BradfordJohn G. Buckley - University of Bradford
- Publication Details
- Gait & posture, v 30(3), pp 370-374
- Publisher
- Elsevier
- Number of pages
- 5
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Graduate School of Biomedical Sciences and Professional Studies
- Web of Science ID
- WOS:000269769900019
- Scopus ID
- 2-s2.0-68349127236
- Other Identifier
- 991021902595704721
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InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Web of Science research areas
- Neurosciences
- Orthopedics
- Sport Sciences