Evidence map›Paper›PMID 24608249›Full record

Trial reportPloS one2014

Locomotor-like leg movements evoked by rhythmic arm movements in humans.

Francesca Sylos-Labini, Yuri P Ivanenko, Michael J Maclellan, Germana Cappellini, Richard E Poppele, Francesco Lacquaniti

Open access · goldAbstract readClinical Trial
In one paragraph

Trial report in PloS one, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed
4.6field-weighted citation impact, top 5% 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

26 citing papers in PubMed, 57 citations in OpenAlex.

  1. Trial
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  15. Maturation of the Locomotor Circuitry in Children With Cerebral Palsy.Frontiers in bioengineering and biotechnology · 2020
    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 at 3 institutions in 2 countries.

Francesca Sylos-LabiniLaboratory of Neuromotor Physiology, Santa Lucia Foundation, Rome, Italy; Centre of Space Bio-medicine, University of Rome Tor Vergata, Rome, Italy.
Yuri P IvanenkoLaboratory of Neuromotor Physiology, Santa Lucia Foundation, Rome, Italy.
Michael J MaclellanLaboratory of Neuromotor Physiology, Santa Lucia Foundation, Rome, Italy; Louisiana State University, School of Kinesiology, Baton Rouge, Louisiana, United States of America.
Germana CappelliniLaboratory of Neuromotor Physiology, Santa Lucia Foundation, Rome, Italy; Centre of Space Bio-medicine, University of Rome Tor Vergata, Rome, Italy.
Richard E PoppeleDepartment of Neuroscience, University of Minnesota, Minneapolis, Minnesota, United States of America.
Francesco LacquanitiLaboratory of Neuromotor Physiology, Santa Lucia Foundation, Rome, Italy; Centre of Space Bio-medicine, University of Rome Tor Vergata, Rome, Italy; Department of Systems Medicine, University of Rome Tor Vergata, Rome, Italy.
Fondazione Santa Lucia · ITUniversity of Rome Tor Vergata · ITUniversity of Minnesota · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Motion of the upper limbs is often coupled to that of the lower limbs in human bipedal locomotion. It is unclear, however, whether the functional coupling between upper and lower limbs is bi-directional, i.e. whether arm movements can affect the lumbosacral locomotor circuitry. Here we tested the effects of voluntary rhythmic arm movements on the lower limbs. Participants lay horizontally on their side with each leg suspended in an unloading exoskeleton. They moved their arms on an overhead treadmill as if they walked on their hands. Hand-walking in the antero-posterior direction resulted in significant locomotor-like movements of the legs in 58% of the participants. We further investigated quantitatively the responses in a subset of the responsive subjects. We found that the electromyographic (EMG) activity of proximal leg muscles was modulated over each cycle with a timing similar to that of normal locomotion. The frequency of kinematic and EMG oscillations in the legs typically differed from that of arm oscillations. The effect of hand-walking was direction specific since medio-lateral arm movements did not evoke appreciably leg air-stepping. Using externally imposed trunk movements and biomechanical modelling, we ruled out that the leg movements associated with hand-walking were mainly due to the mechanical transmission of trunk oscillations. EMG activity in hamstring muscles associated with hand-walking often continued when the leg movements were transiently blocked by the experimenter or following the termination of arm movements. The present results reinforce the idea that there exists a functional neural coupling between arm and legs.

Indexed as

AdultArmElectromyographyFemaleHumansLegLocomotionMaleMiddle AgedMovementPeriodicity

Identifiers

PMID24608249
PMCPMC3946538
OpenAlexW2025798989

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.