TY  - JOUR
PY  - 2019//
TI  - Are cognitive subtypes associated with dual-task gait performance in a clinical setting?
JO  - Journal of Alzheimer's disease
A1  - Cullen, Stephanie
A1  - Borrie, Michael J.
A1  - Carroll, Susan
A1  - Sarquis-Adamson, Yanina
A1  - Pieruccini-Faria, Frederico
A1  - McKay, Scott
A1  - Montero-Odasso, Manuel
SP  - ePub
EP  - ePub
VL  - ePub
IS  - ePub
N2  - BACKGROUND: Poor dual-task gait (walking while performing a cognitively demanding task) has been linked to progression to dementia in older adults with mild cognitive impairment (MCI). However, many of these findings come from research environments; gait performance across the cognitive spectrum has not previously been studied in a clinical setting. <br><br>OBJECTIVE: To examine whether patients from a memory clinic show differences in usual and dual-task gait speed and dual-task cost (DTC) based on cognitive diagnosis. <br><br>METHODS: Patients in the Aging Brain Memory clinic (London, ON) performed a usual gait walk and three dual-task gait walks: counting backwards by ones, naming animals, and counting backwards by seven (serial sevens) out loud. Patients were timed with a stopwatch over a six-meter path marked on the floor. One-way ANOVA was performed to evaluate associations between gait speed and DTC (% ) across groups. <br><br>RESULTS: One hundred ninety-four patients with subjective cognitive impairment (SCI; n = 46), MCI (n = 77), or dementia (n = 71) were assessed. Performance in usual (p <  0.001) and dual-task gait speed (counting gait p <  0.001; naming animals p <  0.001; serial sevens p = 0.004) decreased across the spectrum of cognitive impairment. Patients with dementia had significantly higher DTC in both counting gait (p = 0.02) and naming animals (p = 0.04) conditions compared with patients with SCI and MCI, who had statistically similar DTC in all conditions. <br><br>CONCLUSION: Dual-task gait performance significantly declines across the cognitive spectrum in a clinical setting. Dual-task gait testing may be used in conjunction with traditional assessments for diagnosing cognitive impairments.<p />  <p>Language: en</p>
LA  - en
SN  - 1387-2877
UR  - http://dx.doi.org/10.3233/JAD-181196
ID  - ref1
ER  -