Motor Excitability Study of High Definition Transcranial Direct Current Stimulation (HD-tDCS) in Chronic Stroke
Studieoversigt
Status
Status
Betingelser
Betingelser
Intervention / Behandling
Intervention / Behandling
Undersøgelsestype
Undersøgelsestype
Tilmelding (Forventet)
Tilmelding
Fase
Fase
- Ikke anvendelig
Kontakter og lokationer
Studiekontakt
Studiekontakt
- Navn: Raymond Kai-yu Tong, PhD
- Telefonnummer: +852 3943 8454
- E-mail: kytong@cuhk.edu.hk
Studiesteder
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-
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Hong Kong, Hong Kong
- Rekruttering
- Department of Biomedical Engineering, The Chinese University of Hong Kong
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Kontakt:
- Raymond Tong, PhD
- Telefonnummer: +852 3943 8454
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Deltagelseskriterier
Berettigelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
Tager imod sunde frivillige
Køn, der er berettiget til at studere
Beskrivelse
Inclusion Criteria:
- Sufficient cognition to follow simple instructions, as well as understand the content and purpose of the experiment;
- Have moderate to severe motor disability at the paretic upper limb (assessed by Fugl-Meter Assessment (FMA), and Action Research Arm Test (ARAT));
- Hemiparesis resulting from a single unilateral lesion of the brain with onset at least 6 months before data collection
Exclusion Criteria:
- Severe hand spasticity, open hand wound or hand deformity;
- Visual field deficits;
- Aphasia, neglect, and apraxia;
- History of alcohol, drug abuse or epilepsy;
- Bilateral infracts;
- Uncontrolled medical problems;
- Serious cognitive deficits [Mini-Mental State Examination (MMSE) < 21];
- Major depression
- Metal implants inside body
- MRI, TMS and tDCS contraindications
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Primært formål: Behandling
- Tildeling: Randomiseret
- Interventionel model: Faktoriel opgave
- Maskning: Dobbelt
Antal våben
Våben og indgreb
Deltagergruppe / ArmDeltagergruppe / Arm |
Intervention / BehandlingIntervention / Behandling |
|---|---|
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Eksperimentel: Anode HD-tDCS
The center anode is fixed on the ipsilesional primary motor cortex and the 4 surrounding cathode electrodes will be placed about 6 cm to the center.
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Different stimulation protocols will be applied to the primary motor cortex of stroke patients.
After 20-minute stimulation, EMG-driven robot hand training will be conducted.
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Eksperimentel: Cathode HD-tDCS
The center cathode is fixed on the contralesional primary motor cortex and the 4 surrounding anode electrodes will be placed about 6 cm to the center.
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Different stimulation protocols will be applied to the primary motor cortex of stroke patients.
After 20-minute stimulation, EMG-driven robot hand training will be conducted.
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Placebo komparator: Sham HD-tDCS
The center anode is fixed on the ipsilesional primary motor cortex and the 4 surrounding cathode electrodes will be placed about 6 cm to the center.
|
Different stimulation protocols will be applied to the primary motor cortex of stroke patients.
After 20-minute stimulation, EMG-driven robot hand training will be conducted.
|
Hvad måler undersøgelsen?
Primære resultatmål
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
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Electroencephalography (EEG) and Electromyography (EMG)
Tidsramme: Before intervention, During intervention, After intervention, 6-month after intervention
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It is used to investigate the changes in corticomuscular coherence for studying connectivity between the brainwave using EEG and the affected hand muscles using EMG.
In addition, EMG will be used to detect muscle activation change and muscle co-contraction pattern alteration.
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Before intervention, During intervention, After intervention, 6-month after intervention
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Action Research Arm Test (ARAT)
Tidsramme: Before intervention, After intervention, 6-month after intervention
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The ARAT is a 19-item measure divided into 4 sub-tests (grasp, grip, pinch, and gross arm movement) to assess upper limb functioning
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Before intervention, After intervention, 6-month after intervention
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Fugl-Meyer Assessment Upper Extremity (FMA-UE)
Tidsramme: Before intervention, After intervention, 6-month after intervention
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It is used to evaluate and measure upper-limb recovery in post-stroke hemiplegic patients, and items are scored on a 3-point ordinal scale
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Before intervention, After intervention, 6-month after intervention
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Sekundære resultatmål
Sekundære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
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Magnetic Resonance Imaging (MRI)
Tidsramme: Before intervention, After intervention, 6-month after intervention
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It is used to identify neural correlates of stimulation-induced behavioral gains for investigating tDCS-induced changes in brain activations
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Before intervention, After intervention, 6-month after intervention
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Transcranial Magnetic Stimulation (TMS)
Tidsramme: Before intervention
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It is used to measure the changes in interhemispheric imbalance and corticospinal excitability
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Before intervention
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Samarbejdspartnere og efterforskere
Sponsor
Sponsor
Efterforskere
Efterforskere
- Ledende efterforsker: Raymond Kai-yu Tong, PhD, Department of Biomedical Engineering, CUHK
Datoer for undersøgelser
Studer store datoer
Studiestart (Faktiske)
Studiestart
Primær færdiggørelse (Forventet)
Primær færdiggørelse
Studieafslutning (Forventet)
Studieafslutning
Datoer for studieregistrering
Først indsendt
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først indsendt, der opfyldte QC-kriterier
Først opslået (Skøn)
Først opslået
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
Sidste opdatering sendt
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
Andre undersøgelses-id-numre
- 2015.691-T
Plan for individuelle deltagerdata (IPD)
Planlægger du at dele individuelle deltagerdata (IPD)?
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