NCT06465290

Brief Summary

This project will develop a wearable rehabilitation robot suitable for in-bed acute stage rehabilitation. It involves robot-guided motor relearning, passive and active motor-sensory rehabilitation early in the acute stage post-TBI including patients who are paralyzed with no motor output. The early acute TBI rehabilitation device will be evaluated in this clinical trial.

Trial Health

65
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
100

participants targeted

Target at P50-P75 for not_applicable

Timeline
51mo left

Started May 2026

Longer than P75 for not_applicable

Status
not yet recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress3%
May 2026Aug 2030

First Submitted

Initial submission to the registry

May 24, 2024

Completed
25 days until next milestone

First Posted

Study publicly available on registry

June 18, 2024

Completed
1.9 years until next milestone

Study Start

First participant enrolled

May 1, 2026

Completed
3.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

August 31, 2029

Expected
1 year until next milestone

Study Completion

Last participant's last visit for all outcomes

August 31, 2030

Last Updated

February 24, 2026

Status Verified

November 1, 2025

Enrollment Period

3.3 years

First QC Date

May 24, 2024

Last Update Submit

February 21, 2026

Conditions

Keywords

Traumatic Brain Injury (TBI)ParaplegiaAcute

Outcome Measures

Primary Outcomes (1)

  • Fugl-Meyer Lower Extremity (FMLE)

    The Fugl-Meyer Lower Extremity (FMLE) assessment is a measure of lower extremity (LE) motor and sensory impairments. The FMLE scale ranges from 0 to 34, with higher scores indicating better motor function.

    At the beginning and end of 3-week training, and 1 month after the treatment ends]

Secondary Outcomes (6)

  • Active range of motion (AROM)

    At the beginning and end of 3-week training, and 1 month after the treatment ends

  • Passive Range of Motion (PROM)

    At the beginning and end of 3-week training, and 1 month after the treatment ends

  • Strength of the ankle flexor-extensor muscle

    At the beginning and end of 3-week training, and 1 month after the treatment ends

  • Modified Ashworth Scale (MAS)

    At the beginning and end of 3-week training, and 1 month after the treatment ends

  • Berg Balance Scale

    At the beginning and end of 3-week training, and 1 month after the treatment ends

  • +1 more secondary outcomes

Study Arms (2)

Study group - Intensive ankle/hand robot rehab

EXPERIMENTAL

Ankle/Hand robot with motor relearning with real-time feedback, passive stretching under intelligent control; Active movement training with robotic assistance

Device: Motor relearning training with wearable ankle robotDevice: Passive stretching with wearable ankle robotDevice: Gamed-based active movement training with wearable ankle robot

Control group - Mild ankle/hand robot rehab

ACTIVE COMPARATOR

The same wearable robot used by the study group will be used for the control group but in a limited way: no motor relearning training under real-time feedback; passive movement in the joint middle range of motion instead of passive stretching; active movement training with no robotic assistance

Device: Passive movement with limited wearable ankle robotDevice: Active movement training with limited wearable ankle robotDevice: Ankle/Wrist torque and motion measurement with limited wearable ankle/wrist robot

Interventions

Active movement training through movement games with robotic assistance

Study group - Intensive ankle/hand robot rehab

Passive movement in the joint middle range of motion

Control group - Mild ankle/hand robot rehab

Active movement training without robotic assistance

Control group - Mild ankle/hand robot rehab

Ankle/Wrist torque and motion measurement with no real-time feedback

Control group - Mild ankle/hand robot rehab

Passive stretching under intelligent robotic control

Study group - Intensive ankle/hand robot rehab

Ankle motor control relearning training under real-time feedback

Study group - Intensive ankle/hand robot rehab

Eligibility Criteria

Age30 Years - 85 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Acute first time unilateral hemispheric stroke (hemorrhagic or ischemic stroke, 24 hours after admission to 1 month post-stroke at the start of the proposed treatment)
  • Hemiplegia or hemiparesis
  • ≤Manual Muscle Testing (MMT)\<=2
  • Age 30-85
  • Ankle impairments including stiff calf muscles and/or inadequate dorsiflexion

You may not qualify if:

  • Medically not stable
  • Associated acute medical illness that interferes with ability to training and exercise
  • No impairment or very mild ankle impairment of ankle
  • Severe cardiovascular problems that interfere with ability to perform moderate movement exercises
  • Cognitive impairment or aphasia with inability to follow instructions
  • Severe pain in legs
  • Severe ankle contracture greater than 15° plantar flexion (when pushing ankle to dorsiflexion)
  • Pressure ulcer, recent surgical incision or active skin disease with open wounds present below knee

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Related Publications (28)

  • Zhang C, Huang MZ, Kehs GJ, Braun RG, Cole JW, Zhang LQ. Intensive In-Bed Sensorimotor Rehabilitation of Early Subacute Stroke Survivors With Severe Hemiplegia Using a Wearable Robot. IEEE Trans Neural Syst Rehabil Eng. 2021;29:2252-2259. doi: 10.1109/TNSRE.2021.3121204. Epub 2021 Nov 4.

    PMID: 34665733BACKGROUND
  • Krakauer JW, Carmichael ST, Corbett D, Wittenberg GF. Getting neurorehabilitation right: what can be learned from animal models? Neurorehabil Neural Repair. 2012 Oct;26(8):923-31. doi: 10.1177/1545968312440745. Epub 2012 Mar 30.

    PMID: 22466792BACKGROUND
  • Langhorne P, Bernhardt J, Kwakkel G. Stroke rehabilitation. Lancet. 2011 May 14;377(9778):1693-702. doi: 10.1016/S0140-6736(11)60325-5.

    PMID: 21571152BACKGROUND
  • Nudo RJ, Milliken GW. Reorganization of movement representations in primary motor cortex following focal ischemic infarcts in adult squirrel monkeys. J Neurophysiol. 1996 May;75(5):2144-9. doi: 10.1152/jn.1996.75.5.2144.

    PMID: 8734610BACKGROUND
  • Ren Y, Wu YN, Yang CY, Xu T, Harvey RL, Zhang LQ. Developing a Wearable Ankle Rehabilitation Robotic Device for in-Bed Acute Stroke Rehabilitation. IEEE Trans Neural Syst Rehabil Eng. 2017 Jun;25(6):589-596. doi: 10.1109/TNSRE.2016.2584003. Epub 2016 Jun 22.

    PMID: 27337720BACKGROUND
  • Sanger TD, Delgado MR, Gaebler-Spira D, Hallett M, Mink JW; Task Force on Childhood Motor Disorders. Classification and definition of disorders causing hypertonia in childhood. Pediatrics. 2003 Jan;111(1):e89-97. doi: 10.1542/peds.111.1.e89.

    PMID: 12509602BACKGROUND
  • Selles RW, Li X, Lin F, Chung SG, Roth EJ, Zhang LQ. Feedback-controlled and programmed stretching of the ankle plantarflexors and dorsiflexors in stroke: effects of a 4-week intervention program. Arch Phys Med Rehabil. 2005 Dec;86(12):2330-6. doi: 10.1016/j.apmr.2005.07.305.

    PMID: 16344031BACKGROUND
  • Sukal-Moulton T, Clancy T, Zhang LQ, Gaebler-Spira D. Clinical application of a robotic ankle training program for cerebral palsy compared to the research laboratory application: does it translate to practice? Arch Phys Med Rehabil. 2014 Aug;95(8):1433-40. doi: 10.1016/j.apmr.2014.04.010. Epub 2014 May 2.

    PMID: 24792141BACKGROUND
  • Waldman G, Yang CY, Ren Y, Liu L, Guo X, Harvey RL, Roth EJ, Zhang LQ. Effects of robot-guided passive stretching and active movement training of ankle and mobility impairments in stroke. NeuroRehabilitation. 2013;32(3):625-34. doi: 10.3233/NRE-130885.

    PMID: 23648617BACKGROUND
  • Wu YN, Hwang M, Ren Y, Gaebler-Spira D, Zhang LQ. Combined passive stretching and active movement rehabilitation of lower-limb impairments in children with cerebral palsy using a portable robot. Neurorehabil Neural Repair. 2011 May;25(4):378-85. doi: 10.1177/1545968310388666. Epub 2011 Feb 22.

    PMID: 21343525BACKGROUND
  • Wu YN, Ren Y, Goldsmith A, Gaebler D, Liu SQ, Zhang LQ. Characterization of spasticity in cerebral palsy: dependence of catch angle on velocity. Dev Med Child Neurol. 2010 Jun;52(6):563-9. doi: 10.1111/j.1469-8749.2009.03602.x. Epub 2010 Jan 28.

    PMID: 20132137BACKGROUND
  • Xerri C, Merzenich MM, Peterson BE, Jenkins W. Plasticity of primary somatosensory cortex paralleling sensorimotor skill recovery from stroke in adult monkeys. J Neurophysiol. 1998 Apr;79(4):2119-48. doi: 10.1152/jn.1998.79.4.2119.

    PMID: 9535973BACKGROUND
  • Yang CY, Guo X, Ren Y, Kang SH, Zhang LQ. Position-dependent, hyperexcitable patellar reflex dynamics in chronic stroke. Arch Phys Med Rehabil. 2013 Feb;94(2):391-400. doi: 10.1016/j.apmr.2012.09.029. Epub 2012 Oct 11.

    PMID: 23063880BACKGROUND
  • Zhang LQ, Chung SG, Ren Y, Liu L, Roth EJ, Rymer WZ. Simultaneous characterizations of reflex and nonreflex dynamic and static changes in spastic hemiparesis. J Neurophysiol. 2013 Jul;110(2):418-30. doi: 10.1152/jn.00573.2012. Epub 2013 May 1.

    PMID: 23636726BACKGROUND
  • Zhang LQ, Rymer WZ. Reflex and intrinsic changes induced by fatigue of human elbow extensor muscles. J Neurophysiol. 2001 Sep;86(3):1086-94. doi: 10.1152/jn.2001.86.3.1086.

    PMID: 11535659BACKGROUND
  • Zhang LQ, Wang G, Nishida T, Xu D, Sliwa JA, Rymer WZ. Hyperactive tendon reflexes in spastic multiple sclerosis: measures and mechanisms of action. Arch Phys Med Rehabil. 2000 Jul;81(7):901-9. doi: 10.1053/apmr.2000.5582.

    PMID: 10896002BACKGROUND
  • Zhao H, Wu YN, Hwang M, Ren Y, Gao F, Gaebler-Spira D, Zhang LQ. Changes of calf muscle-tendon biomechanical properties induced by passive-stretching and active-movement training in children with cerebral palsy. J Appl Physiol (1985). 2011 Aug;111(2):435-42. doi: 10.1152/japplphysiol.01361.2010. Epub 2011 May 19.

    PMID: 21596920BACKGROUND
  • Albert SJ, Kesselring J. Neurorehabilitation of stroke. J Neurol. 2012 May;259(5):817-32. doi: 10.1007/s00415-011-6247-y. Epub 2011 Oct 1.

    PMID: 21964750BACKGROUND
  • Bernhardt J, Chan J, Nicola I, Collier JM. Little therapy, little physical activity: rehabilitation within the first 14 days of organized stroke unit care. J Rehabil Med. 2007 Jan;39(1):43-8. doi: 10.2340/16501977-0013.

    PMID: 17225037BACKGROUND
  • Bernhardt J, Dewey H, Thrift A, Donnan G. Inactive and alone: physical activity within the first 14 days of acute stroke unit care. Stroke. 2004 Apr;35(4):1005-9. doi: 10.1161/01.STR.0000120727.40792.40. Epub 2004 Feb 26.

    PMID: 14988574BACKGROUND
  • Chung SG, van Rey E, Bai Z, Rymer WZ, Roth EJ, Zhang LQ. Separate quantification of reflex and nonreflex components of spastic hypertonia in chronic hemiparesis. Arch Phys Med Rehabil. 2008 Apr;89(4):700-10. doi: 10.1016/j.apmr.2007.09.051.

    PMID: 18374001BACKGROUND
  • Chung SG, Van Rey E, Bai Z, Roth EJ, Zhang LQ. Biomechanic changes in passive properties of hemiplegic ankles with spastic hypertonia. Arch Phys Med Rehabil. 2004 Oct;85(10):1638-46. doi: 10.1016/j.apmr.2003.11.041.

    PMID: 15468024BACKGROUND
  • Chen K, Wu YN, Ren Y, Liu L, Gaebler-Spira D, Tankard K, Lee J, Song W, Wang M, Zhang LQ. Home-Based Versus Laboratory-Based Robotic Ankle Training for Children With Cerebral Palsy: A Pilot Randomized Comparative Trial. Arch Phys Med Rehabil. 2016 Aug;97(8):1237-43. doi: 10.1016/j.apmr.2016.01.029. Epub 2016 Feb 20.

    PMID: 26903143BACKGROUND
  • Quality Standards Subcommittee of the American Academy of Neurology and the Practice Committee of the Child Neurology Society; Delgado MR, Hirtz D, Aisen M, Ashwal S, Fehlings DL, McLaughlin J, Morrison LA, Shrader MW, Tilton A, Vargus-Adams J. Practice parameter: pharmacologic treatment of spasticity in children and adolescents with cerebral palsy (an evidence-based review): report of the Quality Standards Subcommittee of the American Academy of Neurology and the Practice Committee of the Child Neurology Society. Neurology. 2010 Jan 26;74(4):336-43. doi: 10.1212/WNL.0b013e3181cbcd2f.

    PMID: 20101040BACKGROUND
  • Gao F, Grant TH, Roth EJ, Zhang LQ. Changes in passive mechanical properties of the gastrocnemius muscle at the muscle fascicle and joint levels in stroke survivors. Arch Phys Med Rehabil. 2009 May;90(5):819-26. doi: 10.1016/j.apmr.2008.11.004.

    PMID: 19406302BACKGROUND
  • Gao F, Ren Y, Roth EJ, Harvey R, Zhang LQ. Effects of repeated ankle stretching on calf muscle-tendon and ankle biomechanical properties in stroke survivors. Clin Biomech (Bristol). 2011 Jun;26(5):516-22. doi: 10.1016/j.clinbiomech.2010.12.003. Epub 2011 Jan 6.

    PMID: 21211873BACKGROUND
  • Gao F, Zhang LQ. Altered contractile properties of the gastrocnemius muscle poststroke. J Appl Physiol (1985). 2008 Dec;105(6):1802-8. doi: 10.1152/japplphysiol.90930.2008. Epub 2008 Oct 23.

    PMID: 18948443BACKGROUND
  • Jenkins WM, Merzenich MM. Reorganization of neocortical representations after brain injury: a neurophysiological model of the bases of recovery from stroke. Prog Brain Res. 1987;71:249-66. doi: 10.1016/s0079-6123(08)61829-4. No abstract available.

    PMID: 3588947BACKGROUND

MeSH Terms

Conditions

Brain Injuries, TraumaticParaplegia

Interventions

Muscle Stretching ExercisesRange of Motion, Articular

Condition Hierarchy (Ancestors)

Brain InjuriesBrain DiseasesCentral Nervous System DiseasesNervous System DiseasesCraniocerebral TraumaTrauma, Nervous SystemWounds and InjuriesParalysisNeurologic ManifestationsSigns and SymptomsPathological Conditions, Signs and Symptoms

Intervention Hierarchy (Ancestors)

Exercise TherapyRehabilitationAftercareContinuity of Patient CarePatient CareTherapeuticsPhysical Therapy ModalitiesExerciseMotor ActivityMovementMusculoskeletal Physiological PhenomenaMusculoskeletal and Neural Physiological PhenomenaPhysical ExaminationDiagnostic Techniques and ProceduresDiagnosis

Study Officials

  • Li-Qun Zhang

    University of Maryland

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: Randomized clinical trial with the study group and control group
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor

Study Record Dates

First Submitted

May 24, 2024

First Posted

June 18, 2024

Study Start

May 1, 2026

Primary Completion (Estimated)

August 31, 2029

Study Completion (Estimated)

August 31, 2030

Last Updated

February 24, 2026

Record last verified: 2025-11