Please select the eligibility criteria that correspond to the clinical trial below.
Title: Impact of Non-invasive Brain Stimulation on Motor Recuperation
Brief Summary: tDCS (transcranial direct current stimulation) will be used in chronic stroke patients to improve a variety of functions with superior or inferior limb.


Options:
A: Inclusion Criteria:

* First ever stroke same and less than 30 days (diagnostic criteria according to the World Health Organization definition; corresponding to ICD-9 code 434) weather cortical or subcortical, and ischemic or haemorrhagic.
* Unilateral localization of the stroke verified by computed tomography (CT).
* More or equal than18 years.
* Ability to understand and execute simple instructions.
* Spanish Version of Trunk Impairment Scale.2.0 less than10 points.
* National institute of Health Stroke Scale (NIHSS) score \> 4 points.

Exclusion Criteria:

* Rankin scale more or equal than 2 points before stroke.
* Orthopaedic and other neurological disorders that hamper sitting balance.
* Relevant psychiatric disorders that may prevent from following instructions.
* Other treatments that could influence the effects of the interventions.
* Contraindication to physical activity (e.g., heart failure).
* Using cardiac pacemakers.
* Moderate to severe cognitive impairments as indicated by Minimental test score \< 24 points.
* Patients with haemorrhagic stroke that have undergone surgery.
B: Inclusion Criteria:

* stroke with at least slight deficit in superior or inferior limb

Exclusion Criteria:

* epilepsy
* contraindication to tDCS and/or to fMRI
* presence of metal in the head
* inability to understand/complete behavioural tasks
* chronic intake of alcohol or recreative drugs
* major health condition
* presence of pacemaker
* pregnancy
C: Inclusion Criteria:

* Ischemic stroke confirmed by computed tomography or magnetic resonance imaging, with onset between 72 hours and 6 weeks before enrollment.
* Unilateral paresis of upper limb
* National Institute of Health Stroke Scale ( NIHSS) score of at least 1 point in items 5a or 5b .
* Ability to provide written informed consent (patient ou legal representative).

Exclusion Criteria:

* Lesions affecting the corticomotor pathway in the hemisphere contralateral to the stroke.
* Neurologic diseases except migraine.
* Modified Rankin Scale \> 2 prior to stroke.
* Advanced systemic disease such as cancer or advanced chronic renal disease.
* Clinical instability such as uncontrolled cardiac arrhythmia or heart failure.
* Contraindication for physical therapy.
* Pregnancy.
* Absolute or relative contraindications to tDCS: metallic prosthesis in the head or neck; lesions on the scalp, history of neurosurgery, pacemaker.
* Comprehension aphasia
* Dementia
* Cerebellar stroke or ataxia caused by involvement of cerebellar pathways in the brainstem
D: Inclusion Criteria:

* Patients with clinical diagnosis of acute ischemic stroke (first or recurrent) confirmed by CCT or MRI admitted to the Acute Vascular Unit of HCPA between the first 48 hours of onset of symptoms.
* Patients older than 18 years.
* Patients clinically and hemodynamically stable (SBP 120-220 mmHg, SatO2 up to 92% with or without supplementation, HR between 60 and 100 bmp, body temperature below 38 and RR below 25 bpm).
* Patients are able to react to verbal commands even without being fully alert (Glasgow Scale above 8).
* Prior Rankin until 3
* Motor deficit and / or coordination measured by the NIHSS

Exclusion Criteria:

* Patients with clinical and / or hemodynamic instability
* Patients with hemorrhagic stroke or TIA (transient ischemic attack).
* Patients with progressive neurological disease and acute coronary disease and / or unstable.

Answer: B