Quantification of gait changes in subjects with visual height intolerance when exposed to heights

Autor: Roman eSchniepp, Günter eKugler, Max eWuehr, Maria eEckl, Doreen eHuppert, Sabrina eHuth, Cauchy ePradhan, Klaus eJahn, Thomas eBrandt
Jazyk: angličtina
Rok vydání: 2014
Předmět:
Zdroj: Frontiers in Human Neuroscience, Vol 8 (2014)
Druh dokumentu: article
ISSN: 1662-5161
DOI: 10.3389/fnhum.2014.00963
Popis: Introduction: Visual height intolerance (vHI) manifests as instability at heights with apprehension of losing balance or falling. We investigated contributions of visual feedback and attention on gait performance of subjects with vHI. Material and Methods: Sixteen subjects with vHI walked over a gait mat (GAITRite®) on a 15-m-high balcony and at ground-level. Subjects walked at different speeds (slow, preferred, fast), during changes of the visual input (gaze straight/ up/ down; eyes open /closed), and while doing a cognitive task. An rmANOVA with the factors height situation and gait condition was performed. Subjects were also asked to estimate the height of the balcony over ground level. The individual estimates were used for correlations with the gait parameters.Results: Study participants walked slower at heights, with reduced cadence and stride length. The double support phases were increased (all p
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