Effect of Motor Imagery and Motor Execution-based Brain Computer Interface on Motor Rehabilitation in Subacute Ischemic Stroke
Overview
- Phase
- Not Applicable
- Intervention
- Not specified
- Conditions
- Stroke
- Sponsor
- First Affiliated Hospital Xi'an Jiaotong University
- Enrollment
- 40
- Locations
- 1
- Primary Endpoint
- The change of Fugl-Meyer motor function assessment of upper limb
- Status
- Recruiting
- Last Updated
- 3 years ago
Overview
Brief Summary
About 50% of stroke patients are unable to live independently because of residual disability. Brain-computer interface (BCI) is based on closed-loop theory, which facilitates neurological remodeling by establishing a bridge between central and peripheral connections. Studies have confirmed that BCI real-time neurofeedback training system based on motor imagery alone can effectively improve patients' motor function. So, is the benefit greater if motor imagery is combined with motor execution? Current conclusions are mixed. In addition, previous studies and our preliminary study found that prefrontal Fp1 and Fp2 areas play an important role in motor recovery after stroke, and they are involved in motor imagery, motor execution, attention and other behavioral processes. Therefore, we designed a BCI training system based on motor imagery and motor execution with prefrontal electroencephalogram (EEG) signals as the modulatory target. This was a randomized placebo-controlled double-blinded clinical trial. Patients in the test group performed BCI-controlled upper extremity motor imagery + upper extremity pedaling training. The control group had the same equipment and training scenario, and patients were also asked to imagine the upper extremity pedaling movement with effort, and patients also wore EEG caps, but the EEG signals were only recorded without controlling the pedaling equipment. After 3 weeks of treatment, we observed the changes of motor and cognitive functions as well as fNIRS-related brain network characteristics in both groups.
Investigators
Eligibility Criteria
Inclusion Criteria
- •Aged 35-79 years old;
- •Patients with first ischemic stroke onset from 2 week to 3 months;
- •Hemiplegia with upper limb strength grades 1-3;
- •Consciousness, sitting balance level 1 or above, can cooperate with assessment and treatment;
- •The patient or its authorized agent signs the informed consent form.
Exclusion Criteria
- •Severely impaired cognition (MMSE\<20), unable to pay attention to and understand screen information;
- •Severe pain, spasticity and limited mobility of upper extremity.
Outcomes
Primary Outcomes
The change of Fugl-Meyer motor function assessment of upper limb
Time Frame: Three weeks after enrollment
The score range is 0-66 points, the higher the score, the better the motor function of upper limb.
Secondary Outcomes
- Berg Balance Scale(Three weeks after enrollment)
- modified Barthel Index(Three weeks after enrollment)
- P300 latency(Three weeks after enrollment)