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Status unknownNCT01322997Updated Mar 25, 2011

Robotic Brace Incorporating Electromyography (EMG) for Moderate Affected Arm Impairment After Stroke

A Phase 1/2 interventional study of Myomo e100 Robot and repetitive task specific training and Repetitive task specific training (RTP) targeting the affected arm in Stroke, sponsored by University of Cincinnati. Status unknown at 1 site in United States. Open to participants aged 35 Years to 85 Years. Per ClinicalTrials.gov, last updated 2011-03-25.

Sponsored by University of Cincinnati · Phase 1/2, Interventional, and Treatment

The sponsor has not verified this record recently (last verified Mar 2011), so the status shown — last known as Recruiting — may be out of date.
Phase
Phase 1/2
Study type
Interventional
Enrollment
30
Allocation
Randomized
Ages
35 Years to 85 Years
Sex
All
01

Study summary

Stroke is the leading cause of disability in the United States. One of the reasons that it is so disabling is because of upper extremity hemiparesis (weakness in one arm), which is commonly seen after stroke.

The objective of this research is to see if a robotic system worn on the weakened arm like a brace is more useful in improving the strength and coordination of the affected arm, and those of other stroke survivors, than therapy only. Muscle weakness and lack of coordination after a stroke have great effects on how severely disabled the arm is and on quality of life after a stroke.

In this study, patients may be administered a new robotic brace as part of treatment for their affected arms. If they use this brace, your electromyography (EMG) signals will be used to control the powered arm brace. EMG signals are the small electrical signals that result from the actions of the muscles. The system will "listen" to patients' muscles, using small sensors that sit on top of the skin. The device will give the arm a "power-assist" when patients bend or straighten their elbows. The investigators want to test how easy and effective this system is to use. The investigators hypothesize that people using the robot will be more successful in their rehabilitative efforts - and that their movement will improve more - than people receiving traditional therapy.

02

Conditions studied

  • Stroke

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03

In context

Stroke

7,286 studies on the registry are indexed under Stroke; 2,007 are open to participants now.

This study's planned enrollment of 30 is below the median of 50 across 5,369 interventional studies indexed under Stroke.

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Lead sponsor

University of Cincinnati is the lead sponsor of 314 studies on the registry; 43 are open to participants now.

Of its 22 completed or terminated interventional studies of FDA-regulated products, 15 (68%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
35 Years to 85 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Upper extremity Fugl Meyer score >10-\< 25
  • presence of volitionally activated EMG signal from the paretic biceps brachii of at least 5 ųV in amplitude
  • stroke experienced > 1 month prior to study enrollment;
  • a score > 24 on the Folstein Mini Mental Status Examination (MMSE)
  • age > 35 \< 85
  • have experienced one stroke
  • discharged from all forms of physical rehabilitation
  • Myomo brace fits on affected arm properly and without discomfort (i.e., no red marks or discomfort observed in 10 minutes of use during fitting).

Exclusion criteria

Exclusion Criteria:

  • \< 35 years old
  • excessive pain in the affected hand, arm or shoulder, as measured by a score > 5 on a 10-point visual analog scale
  • excessive spasticity at the affected elbow, as defined as a score of > 4 on the Modified Ashworth Spasticity Scale
  • currently participating in any experimental rehabilitation or drug studies
  • apraxia (\< 2.5 on the Alexander scale)
  • severe sensory loss in affected hand (Nottingham sensory scale at least 75% of normal)
  • severe language deficits (score \< 2 on NIH Stroke Scale question 9)
  • Stroke that occurred in the brainstem
  • A current medical history of uncontrolled cardiovascular, or pulmonary disease, or other disease that would preclude involvement in a therapeutic treatment
  • History of neurological disorder other than stroke (other neurological disorders may affect the upper extremity motor performance of subjects.)
  • Other significant pain or skin irritation in the upper extremity that would be exacerbated if by the use of the brace
  • Substantial contracture of elbow, defined as > 20 degrees of elbow flexion, as measured at the baseline evaluation.
05

Study design

Phase
Phase 1 / Phase 2
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Single (Outcomes assessor)
Enrollment
30 participants (estimated)

Study arms

  • Experimental
    Myomo + RTP

    This group will be administered a regimen comprised of repetitive task specific practice (RTP) in conjunction with use of the robotic brace described elsewhere in this record.

    Device: Myomo e100 Robot and repetitive task specific training

  • Active comparator
    Myomo

    Patients in this group will only be administered the robotic brace described elsewhere in this record.

    Device: Myomo e100 neurorobotic brace

  • Active comparator
    RTP only

    Patients in this group will be administered repetitive task specific practice (RTP), emphasizing use of their affected arms during performance of valued, functional tasks.

    Behavioral: Repetitive task specific training (RTP) targeting the affected arm

Interventions

  • DeviceMyomo e100 Robot and repetitive task specific training

    Subjects in this group will be administered about an hour/day of therapy targeting the affected arm. This therapy will include about 1/2 an hour of use of a robot that targets arm function and assists with the movement of the affected arm, and about 1/2 an hour of repetitive task specific training (TRP) using the affected arm.

  • BehavioralRepetitive task specific training (RTP) targeting the affected arm

    Subjects in this group will be administered about an hour/day of therapy targeting the affected arm. This therapy will include consist of repetitive task specific training (RTP) using the affected arm, in which patients use the arm to relearn valued movements using their arms.

  • DeviceMyomo e100 neurorobotic brace

    Subjects in this group will be administered about an hour/day of therapy targeting the affected arm. Subjects will use a robot that targets arm function and assists with the movement of the affected arm.

06

What researchers measure

Primary outcomes

  1. Change from baseline to after intervention and 3 months after intervention in the amount of active movement at each joint of the affected arm. This will be measured using the upper extremity section of the Fugl-Meyer Assessment.

    The primary outcome in this study is arm impairment. We will measure this using the Fugl-Meyer; a stroke-specific measure that determines how much active movement patients exhibit at each joint of the affected upper extremity.

    Time frame: Twice before intervention; once after intervention; 2 months after intervention.

07

Study locations

1 of 1 sites recruiting
  • Univcersity of Cincinnati
    Cincinnati, Ohio 45267, United States
    • Stephen Page, PhD · Contact · stephen.page@uc.edu · 513-558-2754
    • Stephen Page, PhD · Principal investigator
    Recruiting
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Mar 25, 2011, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT01322997
Lead sponsor
University of Cincinnati
First posted
Mar 25, 2011
Start date
Sep 2010
Primary completion
May 2012 (estimated)
Completion
May 2012 (estimated)
Last update
Mar 25, 2011

Study contacts

Stephen Page, PhD
Contact
stephen.page@uc.edu
513-558-2754

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is status unknown, as verified in Mar 2011. You cannot join it, but the record below documents what was studied.

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