Purpose

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-stroke including patients who are paralyzed with no motor output. The early acute stroke rehabilitation device will be evaluated in this clinical trial.

Condition

Eligibility

Eligible Ages
Between 30 Years and 85 Years
Eligible Sex
All
Accepts Healthy Volunteers
No

Inclusion Criteria

  • 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 - 0≤Manual Muscle Testing (MMT)<=2 - Age 30-85 - Ankle impairments including stiff calf muscles and/or inadequate dorsiflexion

Exclusion Criteria

  • 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

Study Design

Phase
Phase 1/Phase 2
Study Type
Interventional
Allocation
Randomized
Intervention Model
Parallel Assignment
Intervention Model Description
Randomized clinical trial with the study group and control group
Primary Purpose
Treatment
Masking
Single (Outcomes Assessor)

Arm Groups

ArmDescriptionAssigned Intervention
Experimental
Study group - Wearable ankle robot rehab
Wearable rehab robot with motor relearning with real-time feedback, passive stretching under intelligent control; Active movement training with robotic assistance
  • Device: Motor relearning training
    Ankle motor control relearning training under real-time feedback
  • Device: Passive stretching
    Passive stretching under intelligent robotic control
  • Device: Gamed-based active movement training
    Active movement training through movement games with robotic assistance
Active Comparator
Control group - Limited wearable ankle robot rehab
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
    Passive movement in the joint middle range of motion
  • Device: Active movement training
    Active movement training without robotic assistance
  • Device: Ankle torque and motion measurement
    Ankle torque and motion measurement with no real-time feedback

Recruiting Locations

University of Maryland Baltimore
Baltimore, Maryland 21201
Contact:
Dali Xu, PhD

More Details

Status
Recruiting
Sponsor
University of Maryland, Baltimore

Study Contact

Soh-Hyun Hur
410 706-8625
SoHur@som.umaryland.edu

Detailed Description

Stroke survivors often experience loss of motor control and impaired function. Immediately after stroke, there is a time-limited window of heightened plasticity during which the greatest gains in recovery occur. Therefore, early intensive sensorimotor rehabilitation post-stroke is critical in improving functional outcomes and minimizing disability. However, acute stroke survivors often receive little active training to improve mobility during their hospital stay and they are left alone during most of the day. Especially for those acute patients with no voluntary motor output, active motor training might be even less, partly due to a lack of rehabilitation protocols to detect potential motor recovering signals sensitively and facilitate neuroplastic changes. To address this unmet clinical need, this project will develop a novel wearable rehabilitation robot suitable for in-bed acute stage rehabilitation with guided motor relearning, passive and active motor-sensory rehabilitation early in the acute stage post-stroke including patients who are paralyzed with no motor output. The early acute stroke rehabilitation device will be evaluated in this clinical trial.

Notice

Study information shown on this site is derived from ClinicalTrials.gov (a public registry operated by the National Institutes of Health). The listing of studies provided is not certain to be all studies for which you might be eligible. Furthermore, study eligibility requirements can be difficult to understand and may change over time, so it is wise to speak with your medical care provider and individual research study teams when making decisions related to participation.