2022/09/13 by Erin M. Edwards, Ana M. Daugherty, Nora E. Fritz · 1 voice
Health Professions · Medicine · Neuroscience · #Balance, Gait, and Falls Prevention #Multiple Sclerosis Research Studies #Vestibular and auditory disorders
paper · pdf · doi:10.7224/1537-2073.2021-130
openalex publication_date 2022/09/13 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/01
BACKGROUND: Multiple sclerosis (MS) causes motor, cognitive, and sensory impairments that result in injurious falls. Current fall risk measures in MS (ie, forward walking [FW] speed and balance) are limited in their sensitivity. Backward walking (BW) velocity is a sensitive marker of fall risk and correlates with information processing speed (IPS) and visuospatial memory (VSM) in persons with MS. Backward walking is a complex motor task that requires increased cognitive demands, which are negatively affected by MS; however, whether cognitive function modifies the sensitivity of BW as a fall risk assessment in MS remains unknown. This study examines the influence of cognition on the relationship between BW and falls in persons with MS. METHODS: Measures of BW, FW, IPS, VSM, and retrospective falls were collected. Hierarchical regression tested moderation and included an interaction term predicting number of falls. Covariates for all analyses included age and disease severity. RESULTS: = .008), but there was no evidence of moderation. The FW models generated comparable results. CONCLUSIONS: The relationship between BW velocity and falls was not conditional on IPS or VSM in this sample. Larger-scale studies examining additional cognitive domains commonly affected by MS and prospective falls are needed to characterize neurobiological processes relevant to BW and its clinical application in the assessment of fall risk.