Evidence map›Paper›PMID 27789762›Full record

ArticleNeurorehabilitation and neural repair2017

Motor Learning in Stroke: Trained Patients Are Not Equal to Untrained Patients With Less Impairment

Robert M Hardwick, Vikram A Rajan, Amy J Bastian, John W Krakauer, Pablo A Celnik

Abstract read
In one paragraph

Article in Neurorehabilitation and neural repair, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
36citing 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

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

  1. Pooled it
  2. Trial
  3. Trial
  4. Dissociating motor learning from recovery in exoskeleton training post-stroke.Journal of neuroengineering and rehabilitation · 2018
    Trial
  5. Trial
  6. Article
  7. Practice Parameters That Influence Vocal Motor Adaptation in Altered Auditory Feedback Paradigms.Journal of speech, language, and hearing research : JSLHR · 2026
    Article
  8. Article
  9. Article
  10. Article
  11. Competition between Tool and Hand Motion Impairs Movement Planning in Limb Apraxia.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2025
    Article
  12. Article
  13. Article
  14. Article
  15. Controlling Pitch for Prosody: Sensorimotor Adaptation in Linguistically Meaningful Contexts.Journal of speech, language, and hearing research : JSLHR · 2024
    Article
  16. Article
  17. Article
  18. Article
  19. Assessing Impairments in Visuomotor Adaptation After Stroke.Neurorehabilitation and neural repair · 2022
    Article
  20. Training at asymptote stabilizes motor memories by reducing intracortical excitation.Cortex; a journal devoted to the study of the nervous system and behavior · 2021
    Article
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.

Robert M Hardwick1 Johns Hopkins University, Baltimore, MD, USA.
Vikram A Rajan1 Johns Hopkins University, Baltimore, MD, USA.
Amy J Bastian1 Johns Hopkins University, Baltimore, MD, USA.
John W Krakauer1 Johns Hopkins University, Baltimore, MD, USA.
Pablo A Celnik1 Johns Hopkins University, Baltimore, MD, USA.

Funding

Understanding Motor Behavior After StrokeR01HD073147 · NICHD · JOHNS HOPKINS UNIVERSITY · PI CELNIK, PABLO ARIEL · 2012 to 2016
$1.7M
NICHD NIH HHS R01 HD073147
6 · The paper itself

Abstract

BACKGROUND AND

objectiveStroke rehabilitation assumes motor learning contributes to motor recovery, yet motor learning in stroke has received little systematic investigation. Here we aimed to illustrate that despite matching levels of performance on a task, a trained patient should not be considered equal to an untrained patient with less impairment.

methodsWe examined motor learning in healthy control participants and groups of stroke survivors with mild-to-moderate or moderate-to-severe motor impairment. Participants performed a series of isometric contractions of the elbow flexors to navigate an on-screen cursor to different targets, and trained to perform this task over a 4-day period. The speed-accuracy trade-off function (SAF) was assessed for each group, controlling for differences in self-selected movement speeds between individuals.

resultsThe initial SAF for each group was proportional to their impairment. All groups were able to improve their performance through skill acquisition. Interestingly, training led the moderate-to-severe group to match the untrained (baseline) performance of the mild-to-moderate group, while the trained mild-to-moderate group matched the untrained (baseline) performance of the controls. Critically, this did not make the two groups equivalent; they differed in their capacity to improve beyond this matched performance level. Specifically, the trained groups had reached a plateau, while the untrained groups had not.

conclusionsDespite matching levels of performance on a task, a trained patient is not equal to an untrained patient with less impairment. This has important implications for decisions both on the focus of rehabilitation efforts for chronic stroke, as well as for returning to work and other activities.

Indexed as

LearningMotor SkillsStroke RehabilitationAdultAgedFemaleFunctional LateralityHumansMaleMental Status ScheduleMiddle AgedMovement DisordersParesisRoboticsSeverity of Illness IndexStrokehemiparesismotor activitymotor controlmotor disordersmotor impairmentmotor skillsmotor skills disordersspeed-accuracy trade-off

Identifiers

PMID27789762
PMCPMC5292612

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

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.