CCFES + tDCS for Motor Control

Inclusion Criteria:

1. Age ≥ 21

2. ≥ 6 months since first clinical hemorrhagic or nonhemorrhagic stroke

3. Able to follow 3-stage commands and remember 2 of 3 items after 30 minutes

4. Full volitional elbow extension/flexion and hand opening/closing of unaffected limb

5. Adequate active movement of shoulder and elbow to position the paretic hand in the
workspace for table-top task practice

6. Patient must be able to sit unassisted in an armless straight-back chair for the
duration of the screening portion of the eligibility assessment

7. Medically stable

8. ≥ 10° finger extension

9. Unilateral upper limb hemiparesis with finger extensor strength of ≤ grade 4/5 on the
manual muscle test AND a score of

≥1 and ≤ 11/14 on the hand section of the upper extremity Fugl-Meyer Assessment

10. Skin intact on hemiparetic arm, hand and scalp

11. While relaxed, surface neuromuscular electrical stimulation of finger extensors and
thumb extensors and/or abductors produces a functional degree of hand opening without
pain.

12. No significant visual or hearing impairment

Exclusion Criteria:

1. Co-existing neurological condition other than prior stroke involving the hemiparetic
upper limb (e.g., peripheral nerve injury, Parkinson's disease, spinal cord injury,
traumatic brain injury, multiple sclerosis).

2. Uncontrolled seizure disorder

3. Use of seizure lowering threshold medications at the discretion of the study physician
(Dr. Rich Wilson)

4. Cardiac pacemaker or other implanted electronic device and/or stent

5. Pregnant

6. Intramuscular botox injections in any upper extremity muscle in the last 3 months

7. Insensate arm, forearm, or hand

8. Severely impaired cognition and communication

9. Uncompensated hemi-neglect (extinguishing to double simultaneous stimulation)

10. Severe shoulder or hand pain (unable to position hand in the workspace without pain)

11. Metal implant in the head