Evidence map›Paper›PMID 31601860›Full record

ArticleScientific reports2019

Biarticular muscles are most responsive to upper-body pitch perturbations in human standing.

Christian Schumacher, Andrew Berry, Daniel Lemus, Christian Rode, André Seyfarth, Heike Vallery

Abstract read
In one paragraph

Article in Scientific reports, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing 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

23 citing papers in PubMed.

  1. Article
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  5. Biomechanical models in the lower-limb exoskeletons development: a review.Journal of neuroengineering and rehabilitation · 2025
    Review
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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

6 authors.

Christian SchumacherLauflabor Locomotion Laboratory, Institute of Sport Science, Centre for Cognitive Science, Technische Universität Darmstadt, Darmstadt, 64289, Germany. christian.schumacher@tu-darmstadt.de.ORCID http://orcid.org/0000-0001-9363-3656
Andrew BerryDelft Biorobotics Lab, BioMechanical Engineering, Delft University of Technology, Delft, 2628 CD, The Netherlands.ORCID http://orcid.org/0000-0001-7075-8675
Daniel LemusDelft Biorobotics Lab, BioMechanical Engineering, Delft University of Technology, Delft, 2628 CD, The Netherlands.ORCID http://orcid.org/0000-0002-0633-4752
Christian RodeFriedrich-Schiller-Universität Jena, Institute of Zoology and Evolutionary Research, Jena, 07743, Germany.
André SeyfarthLauflabor Locomotion Laboratory, Institute of Sport Science, Centre for Cognitive Science, Technische Universität Darmstadt, Darmstadt, 64289, Germany.
Heike ValleryDelft Biorobotics Lab, BioMechanical Engineering, Delft University of Technology, Delft, 2628 CD, The Netherlands.

Funding

EASTERN COOPERATIVE ONCOLOGY GROUPU10CA016116 · NCI · JOHNS HOPKINS UNIVERSITY · PI FORASTIERE, ARLENE ANN · 1985 to 2013
$4.0M
NCI NIH HHS U10 CA016116
6 · The paper itself

Abstract

Balancing the upper body is pivotal for upright and efficient gait. While models have identified potentially useful characteristics of biarticular thigh muscles for postural control of the upper body, experimental evidence for their specific role is lacking. Based on theoretical findings, we hypothesised that biarticular muscle activity would increase strongly in response to upper-body perturbations. To test this hypothesis, we used a novel Angular Momentum Perturbator (AMP) that, in contrast to existing methods, perturbs the upper-body posture with only minimal effect on Centre of Mass (CoM) excursions. The impulse-like AMP torques applied to the trunk of subjects resulted in upper-body pitch deflections of up to 17° with only small CoM excursions below 2 cm. Biarticular thigh muscles (biceps femoris long head and rectus femoris) showed the strongest increase in muscular activity (mid- and long-latency reflexes, starting 100 ms after perturbation onset) of all eight measured leg muscles which highlights the importance of biarticular muscles for restoring upper-body balance. These insights could be used for improving technological aids like rehabilitation or assistive devices, and the effectiveness of physical training for fall prevention e.g. for elderly people.

Indexed as

Standing PositionAdultBioengineeringElectromyographyFemaleGaitHumansLegMaleMiddle AgedMuscle ContractionMuscle, SkeletalPostural BalancePostureProprioceptionThigh

Identifiers

PMID31601860
PMCPMC6787002

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.