Evidence map›Paper›PMID 31621615›Full record

ArticleParkinsonism & related disorders2019

Objective impairment of tandem gait in Parkinson's disease patients increases with disease severity.

Rohan Sharma, Lakshmi Pillai, Aliyah Glover, Tuhin Virmani

Open access · greenAbstract read
In one paragraph

Article in Parkinsonism & related disorders, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
0.6field-weighted citation impact, top 29% 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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

7 citing papers in PubMed, 11 citations in OpenAlex.

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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

4 authors at 1 institution in 1 country.

Rohan SharmaDepartment of Neurology, University of Arkansas for Medical Sciences, Little Rock, AR, USA.
Lakshmi PillaiDepartment of Neurology, University of Arkansas for Medical Sciences, Little Rock, AR, USA.
Aliyah GloverDepartment of Neurology, University of Arkansas for Medical Sciences, Little Rock, AR, USA.
Tuhin VirmaniDepartment of Neurology, University of Arkansas for Medical Sciences, Little Rock, AR, USA; Center for Translational Neuroscience, University of Arkansas for Medical Sciences, Little Rock, AR, USA. Electronic address: TVirmani@uams.edu.
University of Arkansas for Medical Sciences · US

Funding

Telemedicine CoreP30GM110702 · NIGMS · UNIV OF ARKANSAS FOR MED SCIS · PI GARCIA-RILL, EDGAR E. · 2014 to 2018
$6.1M
NIGMS NIH HHS P30 GM110702
6 · The paper itself

Abstract

introductionTandem gait abnormalities have been reported to increase with advancing age, play a role in fall-prediction in Parkinson's disease, and distinguish it from atypical parkinsonism. Tandem gait has been scored based on the number of side steps off a straight line in these studies. Objective measurement of spatiotemporal tandem gait parameters in Parkinson's disease has not been previously reported.

methodsSubjects (74 Parkinson's disease and 28 controls) were enrolled after IRB approval. Those with more than 1 fall/day or a Montreal Cognitive Assessment score <10 were excluded. Subjects tandem walked ("heel to toe") on a 20 foot pressure-sensor mat. Data was collected and analyzed using PKMAS software (Protokinetics).

resultsCompared to controls, on tandem gait, Parkinson's subjects had increased step width, stride width and path width, with a slower stride velocity and an increased time spent in all phases of the gait cycle. Parkinson's subjects also applied greater pressure with each step and had greater step-to-step variability in tandem gait measures. While Hoehn & Yahr stage 1 subjects were not significantly different from controls, stage 2 and 2.5 + groups were different. Parkinson's subjects with freezing of gait also walked with a wider base compared to those without gait freezing. Tandem gait spatiotemporal parameters were not correlated with fall frequency.

conclusionsTandem gait is impaired in Parkinson's disease in a stage-dependent manner, with wider base and increased step-to-step variability, which could suggest involvement of cerebellar and mediolateral balance pathways.

Indexed as

AgedBiomechanical PhenomenaFemaleGait Disorders, NeurologicHumansMaleMiddle AgedParkinson DiseaseSeverity of Illness IndexFallsFreezing of gaitParkinson's diseaseTandem gait

Identifiers

PMID31621615
PMCPMC6902868
OpenAlexW2976201642

What OpenQuestion holds

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LicenceTDM
Read underepoch 390

Registered trials

None linked

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.