Able to walk for 5 minutes at self-paced speed. Handheld assistive device is acceptable.
Walking speed lesser than 1.2 m/s
Lower limb Fugl-Meyer Motor score between 15-30
At least 5 deg of ankle dorsiflexion necessary to perform the ankle-tracking task
You may not be if
* Severe osteoporosis
* Contracture-limiting range of motion of lower limb
* Score of more than 2 on the Modified Ashworth Scale (indicating increased muscle tone through ankle range of motion)
* Uncontrolled anti-spasticity medications during the study period
* Score less than 6 on the Fugl-Meyer Sensory Assessment Scale for the Lower Limb
* Cardiorespiratory or metabolic diseases (e.g. cardiac arrhythmia, uncontrolled hypertension or diabetes, chronic emphysema)
* Unhealed decubiti, persistent infection
* Significant cognitive or communication impairment (Mini-Mental State Examination (MMSE)\<21), which could impede the understanding of the purpose of procedures of the study or prevent the patient from performing the ankle-tracking task.
* Lesions involving the brainstem and cerebellum
* Failure to pass the graded exercise stress test
Implanted cardiac pacemaker
Metal implants in the head or face
Unexplained, recurring headaches
History of seizures or epilepsy
Currently under medication that could increase motor excitability and lower seizure threshold
Skull abnormalities or fractures
Concussion within the last 6 months
Currently pregnant
Skin hypersensitivity
History of contact dermatitits
History of allodynia and/or hyperalgesia
Any other skin or scalp condition that could be aggravated by tDCS
