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Passiva robotar för strokerehabilitering: en genomförbarhetsstudie

7 november 2026 uppdaterad av: Chandramouli Krishnan, University of Michigan

Passiva robotar för strokerehabilitering

The purpose of this study is to examine the feasibility and effectiveness of a novel, multimodal approach that combines passive devices with noninvasive neuromuscular stimulation for upper extremity rehabilitation after stroke.

Studieöversikt

Status

Rekrytering

Betingelser

Detaljerad beskrivning

About 800,000 individuals suffer from a stroke every year in the United States. The majority of stroke survivors often experience lingering deficits in upper extremity function. High-end robotic devices can improve outcomes and clinical productivity; however, these devices are expensive and bulky, making them not practical for many clinical or home environments. This study aims to evaluate the feasibility of low-cost non-motorized devices for stroke rehabilitation in a long-term intervention. The intervention will involve training with a table-top, semi-passive (i.e., no motors) exercise equipment called SepaRRo and commonly-used neuromuscular stimulation. The stimulation will be provided during functional activities using a custom controller (NeuRRoFES) to trigger stimulation. These instruments are designed to provide flexible, compliant assistance/resistance to improve upper extremity function and can be used in a home setting. The study will measure technical feasibility (e.g., qualitative survey, adherence, time on task, retention, ability to perform tasks) as well as clinical feasibility (i.e., changes in biomechanical, neurophysiological, and functional measures) of an intervention with these devices in stroke survivors. The findings aim to support the development of affordable, home-use rehabilitation systems for stroke patients.

Studietyp

Interventionell

Inskrivning (Beräknad)

4

Fas

  • Inte tillämpbar

Kontakter och platser

Det här avsnittet innehåller kontaktuppgifter för dem som genomför studien och information om var denna studie genomförs.

Studiekontakt

  • Namn: Chandramouli Krishnan, PT, PhD
  • Telefonnummer: 7349364031
  • E-post: mouli@umich.edu

Studera Kontakt Backup

Studieorter

    • Michigan
      • Ann Arbor, Michigan, Förenta staterna, 48108
        • Rekrytering
        • University of Michigan - NeuRRo Lab
        • Huvudutredare:
          • Chandramouli Krishnan, PT PhD
        • Kontakt:

Deltagandekriterier

Forskare letar efter personer som passar en viss beskrivning, så kallade behörighetskriterier. Några exempel på dessa kriterier är en persons allmänna hälsotillstånd eller tidigare behandlingar.

Urvalskriterier

Åldrar som är berättigade till studier

18 år till 75 år (Vuxen, Äldre vuxen)

Tar emot friska volontärer

Nej

Kön som är behöriga för studier

Allt

Beskrivning

Inclusion Criteria:

  • Age 18 to 75 years;
  • Ischemic or hemorrhagic stroke confirmed by CT, MRI, or clinical criteria;
  • No major deficits of sensation or proprioception;

Exclusion Criteria:

  • Bilateral stroke
  • Unable to think clearly and remember (Mini-Mental State Exam score < 22 and miniMOCA < 8);
  • Uncontrolled Diabetes or Hypertension;
  • Severe limitations of joint range of motion that will lead to inability of testing
  • Severe spasticity and joint contractures that will lead to inability of testing
  • Complete paresis with no possible movements
  • Severe aphasia
  • Any other medical condition that will significantly impact the study results
  • Unable to obtain reliable motor evoked potentials
  • Are pregnant or are actively trying to conceive
  • Have a recent history of repeated fainting spells or syncope.
  • Have a recent history of seizure (epilepsy) while on anti-seizure medication
  • Have a recent history of skull fracture/head injury
  • Have metal implants in the skull
  • Have cardiac pacemakers

Studieplan

Det här avsnittet ger detaljer om studieplanen, inklusive hur studien är utformad och vad studien mäter.

Hur är studien utformad?

Designdetaljer

  • Primärt syfte: Enhetens genomförbarhet
  • Tilldelning: N/A
  • Interventionsmodell: Enskild gruppuppgift
  • Maskning: Ingen (Open Label)

Vapen och interventioner

Deltagargrupp / Arm
Intervention / Behandling
Experimentell: Robotic Intervention

Participants will receive upper extremity rehabilitation using SepaRRo and NeuRRoFES 2-5 times per week for 2-6 weeks

Participants will perform functional movements (e.g., reach for targets) with their extremities. During movements, the devices will be used to assist or resist their motion. Participants may receive biofeedback of their movements to better engage them in training. Participants may receive assistance from the devices (including neuromuscular stimulation) and/or their less-impaired limb.

Vad mäter studien?

Primära resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
Device Survey For Feasibility
Tidsram: Post-intervention (immediately following last session of intervention)

Subjective feedback regarding feasibility of the device for training

Post-intervention (immediately following last session of intervention)

Andra resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
Retention
Tidsram: Post-intervention (immediately following last session of intervention)

Measure of how many participants completed intervention

Post-intervention (immediately following last session of intervention)
Adherence
Tidsram: Post-intervention (immediately following last session of intervention)

Measure of percentage of sessions completed

Post-intervention (immediately following last session of intervention)
Upper extremity Fugl-Meyer Score
Tidsram: Baseline and post-intervention measurements will be taken on separate days, within a week of the first and last sessions of the intervention, respectively.

Changes in upper extremity Fugl-Meyer score from before the intervention (from baseline) to after its completion using publicly available scoring sheets. The Fugl-Meyer score is a measure of functional impairment and runs from 0 to 66 points, with higher numbers reflecting better outcome.

Baseline and post-intervention measurements will be taken on separate days, within a week of the first and last sessions of the intervention, respectively.
Reachable workspace
Tidsram: Baseline and post-intervention measurements will be taken on separate days, within a week of the first and last sessions of the intervention, respectively

Changes in reachable workspace from before the intervention (from baseline) to after its completion). The reachable workspace area will be measured with SepaRRo obtained from optical encoders mounted in the device.

Baseline and post-intervention measurements will be taken on separate days, within a week of the first and last sessions of the intervention, respectively
Voluntary hand opening
Tidsram: Baseline and post-intervention measurements will be taken on separate days, within a week of the first and last sessions of the intervention, respectively

Changes in voluntary ability to open the hand from before the intervention (from baseline to after its completion). Voluntary hand opening will be measured with motion capture equipment.

Baseline and post-intervention measurements will be taken on separate days, within a week of the first and last sessions of the intervention, respectively
Action Research Arm Test Score
Tidsram: Baseline and post-intervention measurements will be taken on separate days, within a week of the first and last sessions of the intervention, respectively

Changes in the Action Research Arm Test Score from before the intervention (from baseline) to after its completion using publicly available scoring sheets. The Action Research Arm Test is a measure of arm functional ability and runs from 0 to 57 points, with higher numbers reflecting better outcome.

Baseline and post-intervention measurements will be taken on separate days, within a week of the first and last sessions of the intervention, respectively
Box and Block (BBT)
Tidsram: Baseline and post-intervention measurements will be taken on separate days, within a week of the first and last sessions of the intervention, respectively

Changes in functional measure of arm disability (BBT) from before the intervention (from baseline) to after its completion using publicly available scoring sheets.

Baseline and post-intervention measurements will be taken on separate days, within a week of the first and last sessions of the intervention, respectively
Hand Strength
Tidsram: Baseline and post-intervention measurements will be taken on separate days, within a week of the first and last sessions of the intervention, respectively

Changes in force produced by the hand from before the intervention (from baseline) to after its completion as measured by force production recorded with a dynamometer

Baseline and post-intervention measurements will be taken on separate days, within a week of the first and last sessions of the intervention, respectively
Arm strength
Tidsram: Baseline and post-intervention measurements will be taken on separate days, within a week of the first and last sessions of the intervention, respectively

Changes in force produced by the arm from before the intervention (from baseline) to after its completion as measured by force production recorded with a dynamometer

Baseline and post-intervention measurements will be taken on separate days, within a week of the first and last sessions of the intervention, respectively
Muscle coordination
Tidsram: Baseline and post-intervention measurements will be taken on separate days, within a week of the first and last sessions of the intervention, respectively

Changes in muscle coordination of the upper extremity muscles as measured using surface electromyography between before the intervention (from baseline) to after its completion.

Baseline and post-intervention measurements will be taken on separate days, within a week of the first and last sessions of the intervention, respectively
Joint coordination
Tidsram: Baseline and post-intervention measurements will be taken on separate days, within a week of the first and last sessions of the intervention, respectively

Changes in coordination of the upper extremity joints as measured motion capture between before the intervention (from baseline) to after its completion.

Baseline and post-intervention measurements will be taken on separate days, within a week of the first and last sessions of the intervention, respectively
Corticospinal excitability
Tidsram: Baseline and post-intervention measurements will be taken on separate days, within a week of the first and last sessions of the intervention, respectively

Changes in corticospinal excitability of the upper extremity muscles as measured using surface electromyography and transcranial magnetic stimulation between before the intervention (from baseline) to after its completion

Baseline and post-intervention measurements will be taken on separate days, within a week of the first and last sessions of the intervention, respectively

Samarbetspartners och utredare

Det är här du hittar personer och organisationer som är involverade i denna studie.

Utredare

  • Huvudutredare: Chandramouli Krishnan, PT, PhD, University of Michigan

Studieavstämningsdatum

Dessa datum spårar framstegen för inlämningar av studieposter och sammanfattande resultat till ClinicalTrials.gov. Studieposter och rapporterade resultat granskas av National Library of Medicine (NLM) för att säkerställa att de uppfyller specifika kvalitetskontrollstandarder innan de publiceras på den offentliga webbplatsen.

Studera stora datum

Studiestart (Faktisk)

5 november 2025

Primärt slutförande (Beräknad)

1 oktober 2027

Avslutad studie (Beräknad)

1 oktober 2027

Studieregistreringsdatum

Först inskickad

15 oktober 2025

Först inskickad som uppfyllde QC-kriterierna

16 oktober 2025

Första postat (Faktisk)

20 oktober 2025

Uppdateringar av studier

Senaste uppdatering publicerad (Faktisk)

10 november 2026

Senaste inskickade uppdateringen som uppfyllde QC-kriterierna

7 november 2026

Senast verifierad

1 november 2026

Mer information

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