Identifying gait differences between Alzheimer's disease and dementia with Lewy bodies and their associations with regional amyloid deposition

IF 13 1区医学 Q1 CLINICAL NEUROLOGY

Alzheimer's & Dementia Pub Date : 2025-01-27 DOI:10.1002/alz.14351

Salma Elasfar, Hajr Hameed, Bradley F. Boeve, Julie A. Fields, Clifford R. Jack Jr., Kejal Kantarci, Erik K. St. Louis, Val J. Lowe, Ronald C. Petersen, Farwa Ali, Kaylena Ehgoetz Martens

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引用次数: 0

Abstract

INTRODUCTION

We aimed to compare gait between individuals with Alzheimer's disease (AD), dementia with Lewy bodies (DLB), and cognitively unimpaired (CU) individuals and to evaluate the association between gait and regional amyloid beta (Aβ) burden in AD and DLB.

METHODS

We included 420 participants (70 AD, 70 DLB, 280 CU) in the Mayo Clinic Study of Aging (MCSA). Gait was assessed using a pressure-sensor walkway. Aβ deposition was analyzed with Pittsburgh compound B (PiB) positron emission topography (PET).

RESULTS

The DLB group had reduced stride velocity, step length, and stride width variability, as well as increased double support percentage (%DS) and variability in step length, swing time, and step time compared to the AD and CU groups. Aβ burden was not associated with any gait outcomes.

DISCUSSION

This study provides additional evidence that gait differs between AD and DLB. Larger studies are needed to investigate associations between Aβ burden and gait outcomes in dementia.

Highlights

Gait was more impaired in dementia than in cognitively unimpaired (CU) controls.
Compared with Alzheimer's disease (AD), Dementia with Lewy bodies (DLB) had more impaired pace, variability, and postural control.
Step length and double support (%) distinguished DLB and AD with moderate accuracy.

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来源期刊

Alzheimer's & Dementia 医学-临床神经学

CiteScore

14.50

自引率

5.00%

发文量

299

审稿时长

3 months

期刊介绍： Alzheimer's & Dementia is a peer-reviewed journal that aims to bridge knowledge gaps in dementia research by covering the entire spectrum, from basic science to clinical trials to social and behavioral investigations. It provides a platform for rapid communication of new findings and ideas, optimal translation of research into practical applications, increasing knowledge across diverse disciplines for early detection, diagnosis, and intervention, and identifying promising new research directions. In July 2008, Alzheimer's & Dementia was accepted for indexing by MEDLINE, recognizing its scientific merit and contribution to Alzheimer's research.