Evidence map›Paper›PMID 30356859›Full record

ArticleFrontiers in computational neuroscience2018

The Benefit of Combining Neuronal Feedback and Feed-Forward Control for Robustness in Step Down Perturbations of Simulated Human Walking Depends on the Muscle Function.

Daniel F B Haeufle, Birgit Schmortte, Hartmut Geyer, Roy Müller, Syn Schmitt

Abstract read
In one paragraph

Article in Frontiers in computational neuroscience, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed, 1 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

22 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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  4. Synergy Feedback Control Predicts Walking Across Multiple Cycles.bioRxiv : the preprint server for biology · 2026
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  20. Muscle preflex response to perturbations in locomotion:Frontiers in bioengineering and biotechnology · 2023
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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

5 authors.

Daniel F B HaeufleMulti-Level Modeling in Motor Control and Rehabilitation Robotics, Hertie Institute for Clinical Brain Research and Center for Integrative Neuroscience, Eberhard-Karls Universität Tübingen, Tübingen, Germany.
Birgit SchmortteBiomechanics and Biorobotics, Stuttgart Center for Simulation Sciences (SC SimTech), University of Stuttgart, Stuttgart, Germany.
Hartmut GeyerRobotics Institute, Carnegie Mellon University, Pittsburgh, PA, United States.
Roy MüllerInstitute of Sport Science, Friedrich Schiller University of Jena, Jena, Germany.
Syn SchmittBiomechanics and Biorobotics, Stuttgart Center for Simulation Sciences (SC SimTech), University of Stuttgart, Stuttgart, Germany.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

It is often assumed that the spinal control of human locomotion combines feed-forward central pattern generation with sensory feedback via muscle reflexes. However, the actual contribution of each component to the generation and stabilization of gait is not well understood, as direct experimental evidence for either is difficult to obtain. We here investigate the relative contribution of the two components to gait stability in a simulation model of human walking. Specifically, we hypothesize that a simple linear combination of feedback and feed-forward control at the level of the spinal cord improves the reaction to unexpected step down perturbations. In previous work, we found preliminary evidence supporting this hypothesis when studying a very reduced model of rebounding behaviors. In the present work, we investigate if the evidence extends to a more realistic model of human walking. We revisit a model that has previously been published and relies on spinal feedback control to generate walking. We extend the control of this model with a feed-forward muscle activation pattern. The feed-forward pattern is recorded from the unperturbed feedback control output. We find that the improvement in the robustness of the walking model with respect to step down perturbations depends on the ratio between the two strategies and on the muscle to which they are applied. The results suggest that combining feed-forward and feedback control is not guaranteed to improve locomotion, as the beneficial effects are dependent on the muscle and its function during walking.

Indexed as

forward-dynamicsHill-type musclemusculo-skeletal modelperturbationreflexsimulation

Identifiers

PMID30356859
PMCPMC6190627

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.