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Efficacy of Temporal Interference-based Deep Brain Stimulation Combined With Conventional Rehabilitation Training for Lower Limb Motor Dysfunction After Stroke

17. September 2026 aktualisiert von: Lvping Li, The Third People's Hospital of Huizhou

Efficacy of Temporal Interference-based Deep Brain Stimulation Combined With Conventional Rehabilitation Training for Lower Limb Motor Dysfunction After Stroke: A Prospective Randomized Controlled Clinical Trial

Stroke, as one of the most disabling neurological diseases worldwide, causes significant functional impairments in the lower limbs, severely affecting the quality of life of patients. Traditional neuroregulation techniques such as transcranial magnetic stimulation (TMS) and transcranial direct current/alternating current stimulation (tDCS/tACS) can only intervene in the cerebral cortex. Deep brain stimulation (DBS), which requires invasive craniotomy to implant electrodes and has certain risks, is difficult to fully meet the rehabilitation needs of patients. These treatment methods are insufficient. Transcranial Temporal Interference (TI) Stimulation, as a new non-invasive neuroregulation technology, generates low-frequency envelope signals through high-frequency electric fields to achieve precise stimulation of deep brain tissues, providing a new direction for the treatment of stroke. This study is a clinical research to explore the efficacy of TI technology in the treatment of lower limb dysfunction in stroke, aiming to expand the clinical practice of TI technology in the field of stroke rehabilitation and provide theoretical support and practical guidance for the transformation and application of TI technology.

Studienübersicht

Status

Noch keine Rekrutierung

Bedingungen

Intervention / Behandlung

Studientyp

Interventionell

Einschreibung (Geschätzt)

60

Phase

  • Unzutreffend

Kontakte und Standorte

Dieser Abschnitt enthält die Kontaktdaten derjenigen, die die Studie durchführen, und Informationen darüber, wo diese Studie durchgeführt wird.

Studienkontakt

  • Name: Lvping Li, Master
  • Telefonnummer: +86 13542799020
  • E-Mail: 4531027@qq.com

Teilnahmekriterien

Forscher suchen nach Personen, die einer bestimmten Beschreibung entsprechen, die als Auswahlkriterien bezeichnet werden. Einige Beispiele für diese Kriterien sind der allgemeine Gesundheitszustand einer Person oder frühere Behandlungen.

Zulassungskriterien

Studienberechtigtes Alter

18 Jahre bis 75 Jahre (Erwachsene, Älterer Erwachsener)

Akzeptiert gesunde Freiwillige

Nein

Studienberechtigte Geschlechter

Alle

Beschreibung

Inclusion Criteria:

  • The patients met the diagnostic criteria of stroke formulated by the Fourth National Cerebrovascular Disease Conference and were confirmed by head CT or MRI.
  • The duration of the first episode ranged from 1 to 6 months.
  • Age ranged from 18 to 75 years and both sexes were included.
  • There was definite lower limb dysfunction, and Brunnstrom stage of lower limbs was II-IV.
  • Informed consent was obtained voluntarily.

Exclusion Criteria:

  • People with metallic implants (e.g., aneurysm clips, pacemakers) or skull defects.
  • Have a history of epilepsy or are taking medications that may lower the seizure threshold.
  • Patients with severe heart, liver, kidney dysfunction or other serious physical diseases.
  • Pregnant or lactating women.
  • Patients with skin allergy or skin lesions at irritating sites.
  • Hemorrhagic lesions in the basal ganglia (including previous or current basal ganglia hemorrhage).
  • Impairment of lower limb mobility due to other nonstroke factors was sufficient to significantly affect the primary outcome assessor.
  • Inability to cooperate with investigators.
  • At the same time, he participated in other research projects.

Studienplan

Dieser Abschnitt enthält Einzelheiten zum Studienplan, einschließlich des Studiendesigns und der Messung der Studieninhalte.

Wie ist die Studie aufgebaut?

Designdetails

  • Hauptzweck: Behandlung
  • Zuteilung: Zufällig
  • Interventionsmodell: Parallele Zuordnung
  • Maskierung: Doppelt

Waffen und Interventionen

Teilnehmergruppe / Arm
Intervention / Behandlung
Schein-Komparator: Sham stimulation group

The routine rehabilitation strictly follows the standard treatment protocols (SOC) recommended by domestic and international guidelines such as the "Chinese Guidelines for Stroke Rehabilitation Therapy", including secondary prevention with medication, task-oriented lower limb muscle strength training, balance training, gait correction training, and physical factor therapy. This is carried out by rehabilitation therapists according to the hospital's routine procedures, 5 times a week, each session lasting approximately 60 minutes, for a total of 3 weeks. The TI stimulation is a sham stimulation. Specifically, the electrode application, positioning, and equipment operation procedures are exactly the same as those in the true stimulation group. The current rises gradually from a 30-second slope to the preset intensity and then immediately returns to zero. Only the first 30 seconds produce a slight scalp sensation, and there is no effective modulated electric field thereafter.

The routine rehabilitation strictly follows the standard treatment protocols recommended by domestic and international guidelines such as "Chinese Guidelines for Stroke Rehabilitation Therapy", including secondary prevention with medication, task-oriented lower limb muscle strength training, balance training, gait correction training, and physical factor therapy. This is carried out by rehabilitation therapists according to the hospital's routine procedures, 5 times a week, each session lasting approximately 60 minutes, for a total of 3 weeks.

The electrode application, positioning, and equipment operation procedures are exactly the same as those in the true stimulation group. The current gradually increases from a 30-second ramp to the preset intensity and then immediately returns to zero. Only the first 30 seconds cause a slight sensation on the scalp, and no effective modulated electric field is generated thereafter. 20 minutes each time, 5 times a week, for a total of 3 weeks.

Experimental: True stimulation group

The conventional rehabilitation was the same as the sham stimulation group. On this basis, for the TI stimulation, the target area was selected as the affected side striatum (caudate nucleus), and a head model was constructed based on individualized cranial MRI (T1-weighted image). The NervioWeb and other online platforms were used to optimize the 8-12 electrode configuration scheme. Stimulation parameters: carrier frequency of 2 kHz and 2.020 kHz, generating a 20 Hz envelope; initial current intensity of 2 mA per electrode, gradually increasing to the tolerance limit (single electrode ≤ 5 mA, total current ≤ 10 mA); 20 minutes each time, 5 times a week, for a total of 3 weeks.

The routine rehabilitation strictly follows the standard treatment protocols recommended by domestic and international guidelines such as "Chinese Guidelines for Stroke Rehabilitation Therapy", including secondary prevention with medication, task-oriented lower limb muscle strength training, balance training, gait correction training, and physical factor therapy. This is carried out by rehabilitation therapists according to the hospital's routine procedures, 5 times a week, each session lasting approximately 60 minutes, for a total of 3 weeks.

The stimulation target selected by TI was the contralateral striatum (caudate nucleus), and a head model was constructed based on individualized cranial MRI (T1-weighted image). The 8-12 electrode configuration scheme was optimized using online platforms such as NervioWeb. Stimulation parameters: carrier frequency of 2 kHz and 2.020 kHz, generating a 20 Hz envelope; initial current intensity of 2 mA per electrode, gradually increasing to the tolerated upper limit (single electrode ≤ 5 mA, total current ≤ 10 mA); 20 minutes each time, 5 times a week, for a total of 3 weeks.

Was misst die Studie?

Primäre Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
Lower extremity part of Fugl-Meyer rating scale
Zeitfenster: Measurements were conducted before the intervention (baseline), on the ninth day after the intervention, and again after the intervention (3 weeks later).

The Fugl-Meyer Assessment Lower Extremity component (FMA-LE) is a standardized tool for the assessment of lower limb motor function in patients after stroke. It contains 17 items and is divided into two subscales: lower limb motor and coordination/speed . Higher scores indicate better function. For each item, a score of 0 indicates unable to complete/no function, a score of 1 indicates partially completed/partially functional, and a score of 2 indicates fully completed/normal function.

Measurements were conducted before the intervention (baseline), on the ninth day after the intervention, and again after the intervention (3 weeks later).

Sekundäre Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
Holden Functional grading assessment scale for walking
Zeitfenster: Measurements were conducted before the intervention (baseline), on the ninth day after the intervention, and again after the intervention (3 weeks later).

Holden functional classification of walking scale is a classic observational scale to assess the walking independence of patients

Measurements were conducted before the intervention (baseline), on the ninth day after the intervention, and again after the intervention (3 weeks later).
Berg Balance Scale
Zeitfenster: Measurements were conducted before the intervention (baseline), on the ninth day after the intervention, and again after the intervention (3 weeks later).

For the balance function of the lower limbs, the Berg balance Scale was used. The scale contains 14 items covering tasks of varying difficulty ranging from balance in a sitting position to standing on one leg. Each item was scored on a 5-point scale from 0 to 4, with a total score ranging from 0 to 56. Higher scores indicate better balance.

Measurements were conducted before the intervention (baseline), on the ninth day after the intervention, and again after the intervention (3 weeks later).
Modified Barthel Index
Zeitfenster: Measurements were conducted before the intervention (baseline), on the ninth day after the intervention, and again after the intervention (3 weeks later).

The Modified Barthel Index (MBI) was used to evaluate the activities of daily living of patients

Measurements were conducted before the intervention (baseline), on the ninth day after the intervention, and again after the intervention (3 weeks later).
Motor evoked potential
Zeitfenster: Measurements were conducted before the intervention (baseline), on the ninth day after the intervention, and again after the intervention (3 weeks later).

TMS was used to detect the latency and amplitude of MEP of tibial anterior muscle and quadriceps femoris muscle on the affected and healthy sides, and to evaluate the cortical excitability of M1 area and the conduction function (conduction velocity and integrity) of corticospinal tract.

Measurements were conducted before the intervention (baseline), on the ninth day after the intervention, and again after the intervention (3 weeks later).
Functional near-infrared spectroscopy imaging
Zeitfenster: Measurements were conducted before the intervention (baseline), on the ninth day after the intervention, and again after the intervention (3 weeks later).

Functional near-infrared spectroscopy (NIRS) was used to evaluate the brain function of the subjects in the resting state and task state (ankle dorsiflexion task), and to monitor the activation patterns of motor-related brain areas (such as primary motor cortex and supplementary motor area). The changes of functional connectivity of brain functional network were analyzed.

Measurements were conducted before the intervention (baseline), on the ninth day after the intervention, and again after the intervention (3 weeks later).

Mitarbeiter und Ermittler

Hier finden Sie Personen und Organisationen, die an dieser Studie beteiligt sind.

Sponsor

Mitarbeiter

Ermittler

  • Studienleiter: Lvping Li, Master, The Third People's Hospital of Huizhou

Studienaufzeichnungsdaten

Diese Daten verfolgen den Fortschritt der Übermittlung von Studienaufzeichnungen und zusammenfassenden Ergebnissen an ClinicalTrials.gov. Studienaufzeichnungen und gemeldete Ergebnisse werden von der National Library of Medicine (NLM) überprüft, um sicherzustellen, dass sie bestimmten Qualitätskontrollstandards entsprechen, bevor sie auf der öffentlichen Website veröffentlicht werden.

Haupttermine studieren

Studienbeginn (Geschätzt)

1. Oktober 2026

Primärer Abschluss (Geschätzt)

1. September 2027

Studienabschluss (Geschätzt)

30. September 2028

Studienanmeldedaten

Zuerst eingereicht

14. September 2026

Zuerst eingereicht, das die QC-Kriterien erfüllt hat

17. September 2026

Zuerst gepostet (Tatsächlich)

22. September 2026

Studienaufzeichnungsaktualisierungen

Letztes Update gepostet (Tatsächlich)

22. September 2026

Letztes eingereichtes Update, das die QC-Kriterien erfüllt

17. September 2026

Zuletzt verifiziert

1. September 2026

Mehr Informationen

Begriffe im Zusammenhang mit dieser Studie

Andere Studien-ID-Nummern

  • 2026-KY-138-01

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Studiert ein von der US-amerikanischen FDA reguliertes Geräteprodukt

Nein

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