People with cognitive impairment caused by cerebral small vessel disease walk more slowly and less steadily when their attention is divided, according to a systematic review and meta-analysis published in the Journal of Neurology. The analysis found that asking patients to walk while performing a simultaneous cognitive task discriminated affected patients from cognitively unimpaired controls more effectively than ordinary single-task walking.
Cerebral small vessel disease is a major contributor to vascular cognitive impairment. Gait abnormalities tend to emerge early in the disease course and are closely related to cognitive decline, which has made quantitative gait assessment a promising candidate for early detection of CSVD-related cognitive impairment, abbreviated CSVD-CI.
Dual-task gait assessment increases cognitive demands during walking and may expose cognitive-motor deficits that are less apparent under single-task conditions. However, the researchers note that heterogeneity in gait metrics, imaging criteria and cognitive paradigms has produced inconsistent findings across studies, making it difficult to identify robust gait markers for the condition.
To address this, the team systematically searched PubMed, Web of Science, Scopus and EBSCO. The search identified nine studies reporting dual-task gait outcomes and eight reporting single-task gait outcomes in patients with CSVD-CI, with four studies reporting outcomes under both conditions.
Under dual-task conditions, patients with CSVD-CI showed significantly slower gait speed (p = 0.014), greater stride time variability (p = 0.027) and higher dual-task costs (p < 0.001) than controls. Together, these results suggest a slower and less stable gait pattern when cognitive demands compete with walking.
Subgroup and sensitivity analyses suggested that CSVD imaging characteristics may contribute to between-study heterogeneity, although the authors emphasise that these findings remain exploratory. The meta-analysis is a synthesis of existing studies rather than a new longitudinal trial, so it cannot establish how gait changes predict future cognitive decline.
The authors conclude that the findings support further investigation of selected dual-task gait parameters as potential behavioural indicators of CSVD-CI. They recommend that future studies in CSVD populations defined using standardised diagnostic and inclusion criteria should evaluate the screening performance and longitudinal predictive value of dual-task gait parameters, as well as their associations with the severity of cognitive impairment.
The study’s scope carries limitations. The evidence base comprised a small number of studies, and the variability in how gait was measured, how CSVD was defined on imaging and which cognitive tasks were used limits the certainty of the pooled estimates. The reported subgroup findings on imaging characteristics are explicitly framed as exploratory rather than definitive.
Even so, the work highlights a practical direction for research into early detection: walking while thinking may unmask subtle cognitive-motor deficits that a routine walking test misses. Confirming whether dual-task gait measures can serve as reliable screening or prognostic tools will require the standardised, longitudinal studies the review calls for.
Subject of Research: Dual-task gait changes in cerebral small vessel disease-related cognitive impairment
Article Title: Changes in gait function associated with cerebral small vessel disease-related cognitive impairment during dual-task walking: a systematic review and meta-analysis
Article References: Li, T., Liu, X., Meng, T., Liu, S., & Ming, D. (2026). Changes in gait function associated with cerebral small vessel disease-related cognitive impairment during dual-task walking: a systematic review and meta-analysis. Journal of Neurology, 273(11), Article 689. https://doi.org/10.1007/s00415-026-14229-7
Image Credits: AI Generated
DOI: 10.1007/s00415-026-14229-7
Keywords: cerebral small vessel disease, cognitive impairment, dual-task walking, gait analysis, meta-analysis, systematic review, vascular cognitive impairment, gait speed, stride time variability, dual-task cost, Journal of Neurology, Changes
News Source: Ophelia Keating. (October 29, 2026). Dual-task walking reveals gait changes tied to cognitive impairment in small vessel disease. Scienmag.
