Effects of Visual Deprivation on Gait Dynamic Stability

Vision can improve bipedal upright stability during standing and affect spatiotemporal parameters during walking. However, little is known about the effects of visual deprivation on gait dynamic stability. We have tested 28 subjects during walking under two different visual conditions, full vision (...

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Main Authors: Marco Iosa, Augusto Fusco, Giovanni Morone, Stefano Paolucci
Format: Article
Language:English
Published: Wiley 2012-01-01
Series:The Scientific World Journal
Online Access:http://dx.doi.org/10.1100/2012/974560
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author Marco Iosa
Augusto Fusco
Giovanni Morone
Stefano Paolucci
author_facet Marco Iosa
Augusto Fusco
Giovanni Morone
Stefano Paolucci
author_sort Marco Iosa
collection DOAJ
description Vision can improve bipedal upright stability during standing and affect spatiotemporal parameters during walking. However, little is known about the effects of visual deprivation on gait dynamic stability. We have tested 28 subjects during walking under two different visual conditions, full vision (FV) and no vision (NV), measuring their upper body accelerations. Lower accelerations were found in NV for the reduced walking speed. However, the normalized accelerations were higher in the NV than in the FV condition, both in anteroposterior (1.05±0.21 versus 0.88±0.16, P=0.001) and laterolateral (0.99±0.26 versus 0.78±0.19, P<0.001) directions. Vision also affected the gait anteroposterior harmony (P=0.026) and, interacting with the environment, also the latero-lateral one (P=0.017). Directly (as main factor of the ANOVA) or indirectly (by means of significant interactions with other factors), vision affected all the measured parameters. In conclusion, participants showed an environment-dependent reduction of upper body stability and harmony when deprived by visual feedback.
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spelling doaj-art-2282e3c8f5004742aa035906257f9e062025-02-03T06:08:03ZengWileyThe Scientific World Journal1537-744X2012-01-01201210.1100/2012/974560974560Effects of Visual Deprivation on Gait Dynamic StabilityMarco Iosa0Augusto Fusco1Giovanni Morone2Stefano Paolucci3Clinical Laboratory of Experimental Neurorehabilitation, Fondazione Santa Lucia IRCCS, 00179 Rome, ItalyClinical Laboratory of Experimental Neurorehabilitation, Fondazione Santa Lucia IRCCS, 00179 Rome, ItalyClinical Laboratory of Experimental Neurorehabilitation, Fondazione Santa Lucia IRCCS, 00179 Rome, ItalyClinical Laboratory of Experimental Neurorehabilitation, Fondazione Santa Lucia IRCCS, 00179 Rome, ItalyVision can improve bipedal upright stability during standing and affect spatiotemporal parameters during walking. However, little is known about the effects of visual deprivation on gait dynamic stability. We have tested 28 subjects during walking under two different visual conditions, full vision (FV) and no vision (NV), measuring their upper body accelerations. Lower accelerations were found in NV for the reduced walking speed. However, the normalized accelerations were higher in the NV than in the FV condition, both in anteroposterior (1.05±0.21 versus 0.88±0.16, P=0.001) and laterolateral (0.99±0.26 versus 0.78±0.19, P<0.001) directions. Vision also affected the gait anteroposterior harmony (P=0.026) and, interacting with the environment, also the latero-lateral one (P=0.017). Directly (as main factor of the ANOVA) or indirectly (by means of significant interactions with other factors), vision affected all the measured parameters. In conclusion, participants showed an environment-dependent reduction of upper body stability and harmony when deprived by visual feedback.http://dx.doi.org/10.1100/2012/974560
spellingShingle Marco Iosa
Augusto Fusco
Giovanni Morone
Stefano Paolucci
Effects of Visual Deprivation on Gait Dynamic Stability
The Scientific World Journal
title Effects of Visual Deprivation on Gait Dynamic Stability
title_full Effects of Visual Deprivation on Gait Dynamic Stability
title_fullStr Effects of Visual Deprivation on Gait Dynamic Stability
title_full_unstemmed Effects of Visual Deprivation on Gait Dynamic Stability
title_short Effects of Visual Deprivation on Gait Dynamic Stability
title_sort effects of visual deprivation on gait dynamic stability
url http://dx.doi.org/10.1100/2012/974560
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