Evidence map›Paper›PMID 38939534›Full record

ArticleParkinson's disease2024

Association of Specific Leg Muscle Strength and Motor Features in Parkinson's Disease.

Chatkaew Pongmala, Chernkhuan Stonsaovapak, Austin Luker, Alexis Griggs, Miriam van Emde Boas, Jacob M Haus, Nicolaas I Bohnen

Abstract read
In one paragraph

Article in Parkinson's disease, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

7 authors.

Chatkaew PongmalaFunctional Neuroimaging, Cognitive and Mobility Laboratory, University of Michigan, Ann Arbor, MI, USA.ORCID https://orcid.org/0000-0002-1738-0105
Chernkhuan StonsaovapakDepartment of Rehabilitation Medicine, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand.ORCID https://orcid.org/0000-0003-1716-8945
Austin LukerFunctional Neuroimaging, Cognitive and Mobility Laboratory, University of Michigan, Ann Arbor, MI, USA.ORCID https://orcid.org/0009-0001-4408-2605
Alexis GriggsFunctional Neuroimaging, Cognitive and Mobility Laboratory, University of Michigan, Ann Arbor, MI, USA.ORCID https://orcid.org/0000-0001-5215-0199
Miriam van Emde BoasFunctional Neuroimaging, Cognitive and Mobility Laboratory, University of Michigan, Ann Arbor, MI, USA.ORCID https://orcid.org/0009-0008-3942-3330
Jacob M HausSchool of Kinesiology, University of Michigan, Ann Arbor, MI, USA.ORCID https://orcid.org/0000-0002-8048-2470
Nicolaas I BohnenFunctional Neuroimaging, Cognitive and Mobility Laboratory, University of Michigan, Ann Arbor, MI, USA.ORCID https://orcid.org/0000-0003-0352-6414

Funding

Udall Catalyst Research Project: Retrosplenial Cholinergic and Attentional-Motor Integration DysfunctionP50NS123067 · NINDS · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI AHMED, OMAR JAMIL · 2021 to 2025
$11.6M
Public Outreach and Education CoreP50NS091856 · NINDS · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI DAUER, WILLIAM T. · 2014 to 2019
$10.1M
Central cholinergic presbyvestibulopathy network changes and imbalance in Parkinson's disease and older personsR01AG073100 · NIA · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI BOHNEN, NICOLAAS IDA · 2021 to 2025
$3.0M
Hyposmia, Cholinergic Denervation and Incipient Cognitive Decline in PDR01NS070856 · NINDS · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI BOHNEN, NICOLAAS IDA · 2010 to 2014
$1.9M
NIA NIH HHS R01 AG073100NINDS NIH HHS P50 NS091856NINDS NIH HHS P50 NS123067NINDS NIH HHS R01 NS070856RRD VA I01 RX001631
6 · The paper itself

Abstract

Background: Postural instability and gait difficulties (PIGD) are a significant cause of falls, mobility loss, and lower quality of life in Parkinson's disease (PD). The connection between PD progression and diminished strength in the lower limbs has been acknowledged. However, the identification of specific muscle groups linked to PIGD and non-PIGD motor features is still unknown. Objective: To explore the relationship between the strength of specific lower limb muscle groups, along with muscle mass, and their associations with PIGD, PIGD subtypes, and non-PIGD motor features in PD. Methods: 95 PD participants underwent detailed motor and non-motor test batteries, including lower limb isometric strength testing and whole-body lean mass assessments. Correlation analysis and univariate and multivariate linear/logistic forward stepwise regression were performed to test associations between PIGD and non-PIGD motor features with normalized value (z-score) of lower limb muscle strength and measures of lean mass. Results: Multivariate regression analysis, adjusted for age, gender, and levodopa equivalent dose, revealed that hip abductor strength was significantly associated with overall PIGD motor severity ratings ( Conclusion: We found that lower hip abductor strength was associated with PIGD and non-PIGD motor features. The association between non-PIGD motor features may suggest specific vulnerability of the hip abductors as part of a proposed brain-muscle loop hypothesis in PD. Moreover, lower hip extensor strength correlated with falls, slow walking, and FoG.

Identifiers

PMID38939534
PMCPMC11211005

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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.