Evidence map›Paper›PMID 39304930›Full record

Trial reportJournal of neuroengineering and rehabilitation2024

Effects of high-definition tDCS targeting individual motor hotspot with EMG-driven robotic hand training on upper extremity motor function: a pilot randomized controlled trial.

Chengpeng Hu, Chun Hang Eden Ti, Kai Yuan, Cheng Chen, Ahsan Khan, Xiangqian Shi, Winnie Chiu-Wing Chu, Raymond Kai-Yu Tong

Registry-linked trialAbstract readRandomized Controlled Trial
In one paragraph

Trial report in Journal of neuroengineering and rehabilitation, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT05638464 (Multisite Transcranial Direct Current Stimulation Targeting Motor Network by Mapping Electric Fields With Task-based fMRI to Promote Hand Function Recovery After Stroke), which is not on this map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing 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.

NCT05638464 narecruitingnot on this map

Multisite Transcranial Direct Current Stimulation Targeting Motor Network by Mapping Electric Fields With Task-based fMRI to Promote Hand Function Recovery After Stroke

TypeinterventionalSponsorChinese University of Hong KongRan2021 to 2024Enrolled50ConditionsStrokeArmsmultisite HD-tDCS EMG-driven robot hand, Sham HD-tDCS EMG-driven robot hand
3 · Its place in the literature

Who cites it

2 citing papers in PubMed.

  1. Article
  2. Review
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

8 authors.

Chengpeng Hu *Department of Biomedical Engineering, The Chinese University of Hong Kong, Hong Kong SAR, China.
Chun Hang Eden Ti *Department of Biomedical Engineering, The Chinese University of Hong Kong, Hong Kong SAR, China.
Kai YuanDepartment of Biomedical Engineering, The Chinese University of Hong Kong, Hong Kong SAR, China.
Cheng ChenDepartment of Biomedical Engineering, The Chinese University of Hong Kong, Hong Kong SAR, China.
Ahsan KhanDepartment of Biomedical Engineering, The Chinese University of Hong Kong, Hong Kong SAR, China.
Xiangqian ShiDepartment of Biomedical Engineering, The Chinese University of Hong Kong, Hong Kong SAR, China.
Winnie Chiu-Wing ChuDepartment of Imaging and Interventional Radiology, The Chinese University of Hong Kong, Hong Kong SAR, China.
Raymond Kai-Yu TongDepartment of Biomedical Engineering, The Chinese University of Hong Kong, Hong Kong SAR, China. kytong@cuhk.edu.hk.

Funding

Research Grant Council of Hong Kong, Hong Kong SAR, China Reference No. 14205419
6 · The paper itself

Abstract

backgroundDelivering HD-tDCS on individual motor hotspot with optimal electric fields could overcome challenges of stroke heterogeneity, potentially facilitating neural activation and improving motor function for stroke survivors. However, the intervention effect of this personalized HD-tDCS has not been explored on post-stroke motor recovery. In this study, we aim to evaluate whether targeting individual motor hotspot with HD-tDCS followed by EMG-driven robotic hand training could further facilitate the upper extremity motor function for chronic stroke survivors.

methodsIn this pilot randomized controlled trial, eighteen chronic stroke survivors were randomly allocated into two groups. The HDtDCS-group (n = 8) received personalized HD-tDCS using task-based fMRI to guide the stimulation on individual motor hotspot. The Sham-group (n = 10) received only sham stimulation. Both groups underwent 20 sessions of training, each session began with 20 min of HD-tDCS and was then followed by 60 min of robotic hand training. Clinical scales (Fugl-meyer Upper Extremity scale, FMAUE; Modified Ashworth Scale, MAS), and neuroimaging modalities (fMRI and EEG-EMG) were conducted before, after intervention, and at 6-month follow-up. Two-way repeated measures analysis of variance was used to compare the training effect between HDtDCS- and Sham-group.

resultsHDtDCS-group demonstrated significantly better motor improvement than the Sham-group in terms of greater changes of FMAUE scores (F = 6.5, P = 0.004) and MASf (F = 3.6, P = 0.038) immediately and 6 months after the 20-session intervention. The task-based fMRI activation significantly shifted to the ipsilesional motor area in the HDtDCS-group, and this activation pattern increasingly concentrated on the motor hotspot being stimulated 6 months after training within the HDtDCS-group, whereas the increased activation is not sustainable in the Sham-group. The neuroimaging results indicate that neural plastic changes of the HDtDCS-group were guided specifically and sustained as an add-on effect of the stimulation.

conclusionsStimulating the individual motor hotspot before robotic hand training could further enhance brain activation in motor-related regions that promote better motor recovery for chronic stroke.

trial registrationThis study was retrospectively registered in ClinicalTrials.gov (ID NCT05638464).

Indexed as

ElectromyographyHandRoboticsStroke RehabilitationTranscranial Direct Current StimulationUpper ExtremityAdultAgedFemaleHumansMagnetic Resonance ImagingMaleMiddle AgedMotor CortexPilot ProjectsRecovery of FunctionEMG-driven robotic handHigh-definition transcranial direct current stimulationPersonalized stimulation montageStroke rehabilitationTask-based fMRIUpper extremity

Identifiers

PMID39304930
PMCPMC11414071

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Registered trials

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.