Evidence map›Paper›PMID 33519706›Full record

ArticleFrontiers in neurology2020

Physical Activity Improves Anxiety and Apathy in Early Parkinson's Disease: A Longitudinal Follow-Up Study.

Samuel Yong-Ern Ng, Nicole Shuang-Yu Chia, Mirza Masoom Abbas, Ehsan Seyed Saffari, Xinyi Choi, Dede Liana Heng, Zheyu Xu, Kay-Yaw Tay, Wing-Lok Au, Eng-King Tan and 1 more

Abstract read
In one paragraph

Article in Frontiers in neurology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed, 3 pooled it
–field-weighted citation impact
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

9 citing papers in PubMed, 3 syntheses or guidelines pooled it.

  1. Apathy and Physical Activity: A Systematic Review and Meta-Analysis.Physiotherapy Canada. Physiotherapie Canada · 2026
    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

11 authors.

Samuel Yong-Ern NgDepartment of Neurology, National Neuroscience Institute, Singapore, Singapore.
Nicole Shuang-Yu ChiaDepartment of Neurology, National Neuroscience Institute, Singapore, Singapore.
Mirza Masoom AbbasDepartment of Neurology, National Neuroscience Institute, Singapore, Singapore.
Ehsan Seyed SaffariCentre for Quantitative Medicine, Duke-NUS Medical School, Singapore, Singapore.
Xinyi ChoiDepartment of Neurology, National Neuroscience Institute, Singapore, Singapore.
Dede Liana HengDepartment of Neurology, National Neuroscience Institute, Singapore, Singapore.
Zheyu XuDepartment of Neurology, National Neuroscience Institute, Singapore, Singapore.
Kay-Yaw TayDepartment of Neurology, National Neuroscience Institute, Singapore, Singapore.
Wing-Lok AuDepartment of Neurology, National Neuroscience Institute, Singapore, Singapore.
Eng-King TanDepartment of Neurology, National Neuroscience Institute, Singapore, Singapore.
Louis Chew-Seng TanDepartment of Neurology, National Neuroscience Institute, Singapore, Singapore.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

PubMed holds no abstract for this paper.

Indexed as

anxietyapathyearly Parkinson's diseasenon-motorphysical activity

Identifiers

PMID33519706
PMCPMC7843441

What OpenQuestion holds

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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.