Evidence map›Paper›PMID 40820209›Full record

ArticleScientific reports2025

Aging-related changes in neuromuscular control strategies and their influence on postural stability.

Scott J Mongold, Christian Georgiev, Thomas Legrand, Esranur Yildiran Carlak, Antonella Iannotta, Pierre Cabaraux, Gilles Naeije, Marc Vander Ghinst, Mathieu Bourguignon

Abstract read
In one paragraph

Article in Scientific reports, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing 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

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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

6 citing papers in PubMed.

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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

9 authors.

Scott J MongoldLaboratory of Functional Anatomy, Université libre de Bruxelles (ULB), 1070, Brussels, Belgium. scott.mongold@ulb.be.
Christian GeorgievLaboratory of Functional Anatomy, Université libre de Bruxelles (ULB), 1070, Brussels, Belgium.
Thomas LegrandSchool of Electrical and Electronic Engineering, University College Dublin (UCD), Dublin, Ireland.
Esranur Yildiran CarlakLaboratory of Functional Anatomy, Université libre de Bruxelles (ULB), 1070, Brussels, Belgium.
Antonella IannottaLaboratory of Functional Anatomy, Université libre de Bruxelles (ULB), 1070, Brussels, Belgium.
Pierre CabarauxLaboratory of Functional Anatomy, Université libre de Bruxelles (ULB), 1070, Brussels, Belgium.
Gilles NaeijeLaboratoire de Neuroanatomie et Neuroimagerie translationnelles, UNI - ULB Neuroscience Institute, Université libre de Bruxelles (ULB), Brussels, Belgium.
Marc Vander GhinstLaboratoire de Neuroanatomie et Neuroimagerie translationnelles, UNI - ULB Neuroscience Institute, Université libre de Bruxelles (ULB), Brussels, Belgium.
Mathieu BourguignonLaboratory of Functional Anatomy, Université libre de Bruxelles (ULB), 1070, Brussels, Belgium.

Funding

Fonds De La Recherche Scientifique - FNRS 1.A.211.24FFonds De La Recherche Scientifique - FNRS 40024164Fonds De La Recherche Scientifique - FNRS FC 46249Fonds De La Recherche Scientifique - FNRS MIS F.4504.21
6 · The paper itself

Abstract

Altered neuromuscular strategies are suggested to contribute to age-related decreases in postural stability. Current approaches tend to overlook global (whole body) neuromuscular postural control strategies, potentially due to methodological constraints or residual influence from a longstanding, but outdated, biomechanical view in which postural sway is represented by a single-jointed inverted pendulum. In this study, we investigate age-related differences in postural strategies during upright static balance maintenance by assessing global neuromuscular control. We collected simultaneous posturography and electromyography (EMG) data from young (18-35 years, n = 32) and older (65-85 years, n = 33) participants while they stood upright on a force plate or on foam pads thereon, with eyes open or closed. Postural instability was assessed by the standard deviation and velocity of the center of pressure. EMG sensors recorded the activity of thirty muscles (15 on each hemibody). Co-contraction across all muscle pairs was measured with Falconer's co-contraction index (CCI), and muscle synergy with non-negative matrix factorization. The older group possessed increased global co-contraction intensity, marked by more frequent use of a knee extensor synergy, and was more unstable than the younger group. Notably, advancing age modulated the variability of co-contraction intensity, where the oldest individuals consistently adopted a pure co-contraction strategy marked by the highest CCI values and lowest variability. Age-corrected correlations revealed that knee extensor CCI values were significantly related to postural instability. Taken together, global co-contraction appears to be a signature of elderly postural strategy and age-related instability may be directly related to the extent of knee extensor co-contraction. These results stress the importance of zooming out from classical agonist-antagonist muscle pair investigations in the endeavor to understand elderly postural control strategy.

Indexed as

AgingMuscle, SkeletalPostural BalanceAdolescentAdultAgedAged, 80 and overBiomechanical PhenomenaElectromyographyFemaleHumansMaleMuscle ContractionYoung Adult

Identifiers

PMID40820209
PMCPMC12358568

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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.