Evidence map›Paper›PMID 33590967›Full record

ArticleAlzheimer's & dementia : the journal of the Alzheimer's Association2021

Gait variability across neurodegenerative and cognitive disorders: Results from the Canadian Consortium of Neurodegeneration in Aging (CCNA) and the Gait and Brain Study.

Frederico Pieruccini-Faria, Sandra E Black, Mario Masellis, Eric E Smith, Quincy J Almeida, Karen Z H Li, Louis Bherer, Richard Camicioli, Manuel Montero-Odasso

Registry-linked trialOpen access · hybridAbstract read
In one paragraph

Article in Alzheimer's & dementia : the journal of the Alzheimer's Association, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT03020381 (Gait as Predictor of Cognitive Decline, Dementia, and Risk of Falls in MCI. A Cohort Study), which is not on this map. Cited by 109 papers.

0numbers the graph read from it
0cells of the map it votes in
109citing papers in PubMed
59.4field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

NCT03020381 recruitingnot on this map

Gait as Predictor of Cognitive Decline, Dementia, and Risk of Falls in MCI. A Cohort Study

TypeobservationalSponsorManuel Montero OdassoRan2007 to 2033Enrolled600ConditionsGait Apraxia, Mild Cognitive Impairment, Subjective Cognitive Impairment, Cerebral Atrophy
3 · Its place in the literature

Who cites it

109 citing papers in PubMed, 191 citations in OpenAlex.

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  15. Development and clinical validation of a stroke-specific Gait Deviation Index.Journal of neuroengineering and rehabilitation · 2026
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49 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors at 7 institutions in 2 countries.

Frederico Pieruccini-FariaGait and Brain Lab, Parkwood Institute, Lawson Health Research Institute, London, Ontario, Canada.
Sandra E BlackDepartment of Medicine and Neurology, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada.
Mario MasellisDepartment of Medicine and Neurology, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada.
Eric E SmithDepartment of Clinical Neurosciences and Hotchkiss Brain Institute, University of Calgary, Calgary, Alberta, Canada.
Quincy J AlmeidaMovement Disorders Research & Rehabilitation Centre, Wilfrid Laurier University, Waterloo, Ontario, Canada.
Karen Z H LiDepartment of Psychology, Concordia University, Montreal, Quebec, Canada.
Louis BhererDepartments of Medicine, Montreal Heart Institute and Institut Universitaire de Gériatrie de Montréal, University of Montreal, Montreal, Quebec, Canada.
Richard CamicioliDepartment of Medicine, Division of Neurology and Neuroscience and Mental Health Institute, University of Alberta, Edmonton, Alberta, Canada.
Manuel Montero-OdassoGait and Brain Lab, Parkwood Institute, Lawson Health Research Institute, London, Ontario, Canada.
Sunnybrook Health Science Centre · CAWestern University · CAConcordia University · CAMontreal Heart Institute · CAUniversity of Alberta · CAUniversity of Calgary · CAWilfrid Laurier University · CA

Funding

CIHR MOP 211220CIHR PJT 153100
6 · The paper itself

Abstract

introductionGait impairment is common in neurodegenerative disorders. Specifically, gait variability-the stride-to-stride fluctuations in distance and time-has been associated with neurodegeneration and cognitive impairment. However, quantitative comparisons of gait impairments across the cognitive spectrum of dementias have not been systematically investigated.

methodsOlder adults (N = 500) with subjective cognitive impairment, Parkinson disease (PD), mild cognitive impairment (MCI), PD-MCI, Alzheimer's disease (AD), PD-dementia, Lewy body dementia, and frontotemporal dementia, as well cognitive normal controls, who were assessed for their gait and cognitive performance.

resultsFactor analyses grouped 11 quantitative gait parameters and identified four independent gait domains: rhythm, pace, variability, and postural control, for group comparisons and classification analysis. Among these domains, only high gait variability was associated with lower cognitive performance and accurately discriminated AD from other neurodegenerative and cognitive conditions. DISCUSSION: Our findings indicate that high gait variability is a marker of cognitive-cortical dysfunction, which can help to identify Alzheimer's disease dementia.

Indexed as

AgedAgingAlzheimer DiseaseBiomarkersBrainCanadaCognition DisordersDementiaFrontotemporal DementiaGaitHumansLewy Body DiseaseParkinson DiseaseBiomarkersbiomarkercognitiondementiagait variabilityneurodegenerative diseases

Identifiers

PMID33590967
PMCPMC8451764
OpenAlexW3130322427

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
Read underepoch 390

Registered trials

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.