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. 2023 Aug 12;5(4):100291.
doi: 10.1016/j.arrct.2023.100291. eCollection 2023 Dec.

Concurrent Validity of Dual-Task Walking Speed With CERAD-NP Assessment Battery in Community-Dwelling Older Adults

Han Suk Lee  1 , Mansoo Ko  2 , Hyung-Ji Kim  3
Affiliations

Concurrent Validity of Dual-Task Walking Speed With CERAD-NP Assessment Battery in Community-Dwelling Older Adults

Han Suk Lee et al. Arch Rehabil Res Clin Transl. .

Abstract

Objective: To explore the concurrent validity of the dual-task walking speed assessments in older adults using the Consortium to Establish a Registry for Alzheimer's Disease Neuro-Psychological (CERAD-NP) Assessment Battery.

Design: Cross-sectional design.

Setting: Welfare care centers, Senior complex centers, and Dementia prevention care centers.

Participants: A total of 163 community-dwelling older adults (N=163) were recruited using consecutive sampling. Participants were composed of 65 older adults with cognitive decline and 98 without cognitive decline.

Interventions: Not applicable.

Main outcome measures: This study assessed the concurrent validity between dual-task walking speed assessments and the Total II score of CERAD-NP using Spearman's rank order correlations. The effect of the dual-task walking speed assessments on the Total II score was further investigated through multiple linear regression analysis.

Results: There was a moderate and statically significant association between the Total II score and all 8 dual-task walking speed assessments (P<.05). The Total II score was strongly associated with the dual tasks of walking on a straight path while counting backward and crossing over an obstacle (r=0.698, r=0.697, respectively; P<.05). According to multiple linear regression, only the dual task of walking while counting backward was significantly associated with the Total II score (P<.05).

Conclusion: The dual-task walking speed assessments, which involved walking and performing a secondary task such as counting backward or crossing an obstacle on a straight path, were highly indicative of cognitive decline. The combination of results from both tasks may provide a more comprehensive evaluation of cognitive decline compared with relying solely on a single-task assessment.

Keywords: Alzheimer; CERAD-NP Assessment Battery Cognition; Dual-task; Walking.

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Figures

Fig 1
Fig 1
Walking with 8 different tasks.
Fig 2
Fig 2
Correlation coefficients between the Total Ⅱ score and the walking speed for each dual-task walking speed assessments.
See this image and copyright information in PMC

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