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EMG Training for Altering Activation Patterns After Stroke

Altering Activation Patterns With EMG Training in the Distal Upper Extremity After Stroke

Status
Completed
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03619772
Enrollment
20
Registered
2018-08-08
Start date
2018-06-28
Completion date
2023-07-01
Last updated
2026-03-20

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Coordination Lack, Stroke, Weakness, Muscle

Keywords

hand, stroke, therapy, rehabilitation

Brief summary

Evaluation of a new EMG controlled game to improve hand function in chronic stroke survivors.

Detailed description

Increased impairment of the hand is commonly reported as an outcome occurring after a stroke. This impairment is due mainly to the decreased ability to modulate appropriate muscle activation patterns. Issues with appropriately modifying activation patterns can profoundly affect tasks of daily living. This study is evaluating a novel software focusing on retraining hand muscle activation patterns through an Electromyographic (EMG) controlled game. Stroke survivors with chronic, severe hemiparesis of the hand will participate in a longitudinal study consisting of 3 weeks of training. We hypothesize that stroke survivors will experience a decrease in time to complete a test of EMG control, as well as improvement in hand motor control.

Interventions

OTHERBilateral

Participants will control game using EMG from both upper limbs.

OTHERUnilateral

Participants will control game using EMG from the more impaired upper limb.

Sponsors

Shirley Ryan AbilityLab
Lead SponsorOTHER
North Carolina State University
CollaboratorOTHER
Marquette University
CollaboratorOTHER
Medical University of South Carolina
CollaboratorOTHER
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
CollaboratorNIH

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
SINGLE (Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to 80 Years
Healthy volunteers
No

Inclusion criteria

* Single, unilateral stroke at least 6 months prior to enrollment * Moderate hand impairment defined by Stage 4 or Stage 5 on the Chedoke McMaster Stroke Assessment Scale

Exclusion criteria

* Visual neglect or deficits (with inability to compensate) * Upper extremity orthopedic conditions that interfere with movement * Cerebellar stroke Children, prisoners, or adult unable to provide consent will not be recruited. As the procedures pose no increased risk for pregnant women, we will not specifically exclude them.

Design outcomes

Primary

MeasureTime frameDescription
Change in Mean Completion Time for Timed TestBaseline and 3 weeks (immediately post intervention)Time to complete movement to 16 randomized targets

Countries

United States

Contacts

PRINCIPAL_INVESTIGATORElliot Roth, MD

Shirley Ryan AbilityLab

Baseline characteristics

Characteristic
Age, Continuous59.4 years
STANDARD_DEVIATION 26.9
Chedoke Stage of Hand Score
Chedoke Hand Score of 4
8 Participants
Chedoke Stage of Hand Score
Chedoke Hand Score of 5
2 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
1 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
19 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
Race (NIH/OMB)
Asian
0 Participants
Race (NIH/OMB)
Black or African American
14 Participants
Race (NIH/OMB)
More than one race
0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
White
5 Participants
Region of Enrollment
United States
20 participants
Sex: Female, Male
Female
6 Participants
Sex: Female, Male
Male
4 Participants
Side of Impairment
Left Affected
9 Participants
Side of Impairment
Right Affected
11 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 100 / 10
other
Total, other adverse events
0 / 100 / 10
serious
Total, serious adverse events
0 / 100 / 10

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Mar 21, 2026