Changes in Cortical Activation During Dual-Task Walking in Individuals With and Without Visual Vertigo.

Background And Purpose: Persons with vestibular disorders are known to have slower gait speed with greater imbalance and veering during dual-task walking than healthy individuals, but the cerebral mechanisms are unknown. The purpose of this study was to determine whether individuals with visual vertigo (VV) have different cerebral activation during dual-task walking compared with control subjects.

Methods: Fourteen individuals with VV and 14 healthy controls (CON) were included (mean 39 years old, 85% women).

Gray Matter Regions Associated With Functional Mobility in Community-Dwelling Older Adults.

Background/objectives: Neuroimaging indicators of reduced brain health in the form of lower gray matter volume (GMV), lower fractional anisotropy (FA), and higher white matter hyperintensity volume (WMHV) have been related to global mobility measures, such as gait speed, in older adults. The purpose was to identify associations between brain regions and specific mobility functions to provide a greater understanding of the contribution of the central nervous system to independent living.

Design: Cross-sectional study.