Evidence map›Paper›PMID 28750549›Full record

Trial reportClinical rehabilitation2018

The role of movement errors in modifying spatiotemporal gait asymmetry post stroke: a randomized controlled trial.

Michael D Lewek, Carty H Braun, Clint Wutzke, Carol Giuliani

Abstract readComparative StudyRandomized Controlled Trial
In one paragraph

Trial report in Clinical rehabilitation, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
42citing papers in PubMed, 2 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

42 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
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  7. Practice Structure and Locomotor Learning After Stroke.Journal of neurologic physical therapy : JNPT · 2019
    Trial
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  10. Gait Adaptation to Asymmetric Foot-Ground Compliance Applied by Robotic Footwear.IEEE transactions on neural systems and rehabilitation engineering : a publication of the IEEE Engineering in Medicine and Biology Society · 2026
    Article
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  18. Autonomous Control of Music to Retrain Walking After Stroke.Neurorehabilitation and neural repair · 2023
    Article
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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

4 authors.

Michael D Lewek1 Division of Physical Therapy, Department of Allied Health Sciences, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.
Carty H Braun2 UNC Health Care System, Chapel Hill, NC, USA.
Clint Wutzke4 Human Movement Science Program, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.
Carol Giuliani1 Division of Physical Therapy, Department of Allied Health Sciences, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.

Funding

Error Based Learning for Restoring Gait Symmetry Post-StrokeR21HD068805 · NICHD · UNIV OF NORTH CAROLINA CHAPEL HILL · PI LEWEK, MICHAEL D · 2012 to 2013
$391k
NICHD NIH HHS R21 HD068805
6 · The paper itself

Abstract

objectiveCurrent rehabilitation to improve gait symmetry following stroke is based on one of two competing motor learning strategies: minimizing or augmenting symmetry errors. We sought to determine which of those motor learning strategies best improves overground spatiotemporal gait symmetry.

designRandomized controlled trial.

settingRehabilitation research lab. SUBJECTS: In all, 47 participants (59 ± 12 years old) with chronic hemiparesis post stroke and spatiotemporal gait asymmetry were randomized to error augmentation, error minimization, or conventional treadmill training (control) groups.

interventionsTo augment or minimize asymmetry on a step-by-step basis, we developed a responsive, "closed-loop" control system, using a split-belt instrumented treadmill that continuously adjusted the difference in belt speeds to be proportional to the patient's current asymmetry. MAIN MEASURES: Overground spatiotemporal asymmetries and gait speeds were collected prior to and following 18 training sessions.

resultsStep length asymmetry reduced after training, but stance time did not. There was no group × time interaction. Gait speed improved after training, but was not affected by type of asymmetry, or group. Of those who trained to modify step length asymmetry, there was a moderately strong linear relationship between the change in step length asymmetry and the change in gait speed.

conclusionAugmenting errors was not superior to minimizing errors or providing only verbal feedback during conventional treadmill walking. Therefore, the use of verbal feedback to target spatiotemporal asymmetry, which was common to all participants, appears to be sufficient to reduce step length asymmetry. Alterations in stance time asymmetry were not elicited in any group.

Indexed as

Walking SpeedAdaptation, PhysiologicalAgedDisability EvaluationExercise TherapyFemaleGait Disorders, NeurologicHumansMaleMiddle AgedPostural BalancePrognosisStrokeStroke RehabilitationTreatment OutcomeadaptationasymmetryGaitlearningstroke

Identifiers

PMID28750549
PMCPMC5748372

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.