Evidence map›Paper›PMID 33936583›Full record

ArticleParkinson's disease2021

Quantitative Analysis of Postural Instability in Patients with Parkinson's Disease.

Yang Yu, Siquan Liang, Yue Wang, Yanan Zhao, Jiaojiao Zhao, Haitao Li, Jingchao Wu, Yuanyuan Cheng, Fan Wu, Jialing Wu

Open access · goldAbstract read
In one paragraph

Article in Parkinson's disease, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed, 1 pooled it
0.9field-weighted citation impact, top 24% 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

5 citing papers in PubMed, 1 synthesis or guideline pooled it, 10 citations in OpenAlex.

  1. Pooled it
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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

10 authors at 1 institution in 1 country.

Yang YuDepartment of Neurological Rehabilitation, Tianjin Huanhu Hosptial, Tianjin, China.
Siquan LiangDepartment of Neurosurgery, Tianjin Huanhu Hosptial, Tianjin, China.ORCID https://orcid.org/0000-0002-2539-3635
Yue WangDepartment of Neurological Rehabilitation, Tianjin Huanhu Hosptial, Tianjin, China.
Yanan ZhaoDepartment of Neurology, Tianjin Huanhu Hosptial, Tianjin, China.
Jiaojiao ZhaoDepartment of Neurology, Tianjin Huanhu Hosptial, Tianjin, China.
Haitao LiDepartment of Neurosurgery, Tianjin Huanhu Hosptial, Tianjin, China.
Jingchao WuDepartment of Neurosurgery, Tianjin Huanhu Hosptial, Tianjin, China.
Yuanyuan ChengDepartment of Neurological Rehabilitation, Tianjin Huanhu Hosptial, Tianjin, China.
Fan WuDepartment of Neurological Rehabilitation, Tianjin Huanhu Hosptial, Tianjin, China.
Jialing WuDepartment of Neurology, Tianjin Huanhu Hosptial, Tianjin, China.ORCID https://orcid.org/0000-0002-7923-1930
Tianjin Huanhu Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionPostural instability is commonly observed in Parkinson's disease, leading to an increasing risk of falling and worsening as the disease progresses. We found that limit of stability can be applied to reflect the dynamic evolution of postural instability in patients with Parkinson's disease.

methodsForty-three patients (9 of Hoehn and Yahr stage I, 12 of stage II, 14 of stage III, and 8 of stage IV) met the criteria for the diagnosis of idiopathic Parkinson's disease and could stand independently for at least 10 minutes. Twelve healthy controls with no sign of parkinsonism were also recruited. Postural instability was assessed by posturography in different directions (forward, backward, right, left, forward-right, forward-left, backward-right, and backward-left). This study trial was registered with the Chinese Clinical Trial Registry (no. ChiCTR1900022715).

resultsAll participants were able to complete the limit of stability tasks without any complications. Patients in stages II to IV exhibited smaller end point excursion and slower time to complete than controls, suggesting an impaired limit of stability. The patients in stage II exhibited a remarkable decline in most directions compared to controls, except for right and left, and forward and backward decline occurred the earliest. For patients in stage III, right was the only direction with no significant difference from controls. In stage IV patients, the limit of stability declined significantly in all directions (

conclusionsThe postural abnormalities of Parkinson's disease can occur at early stages, and the pattern of decline is more severe in the forward-backward direction. This trial is registered with ChiCTR1900022715.

Identifiers

PMID33936583
PMCPMC8060093
OpenAlexW3152998020

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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.