The effects of electrical stimulation on the scalp in painful shoulder post-stroke rehabilitation.

INTERVENTION: E02.331.750 Eleven patients from the control group (tDCS sham) and 11 patients from the experimental group (active tDCS) will participate in this study. Transcranial Current Stimulation will be performed with the "neuroConn DC‐STIMULATOR PLUS" device associated with physical activity with the upper limbs. The anode electrode will be positioned over the region of the cerebral hemisphere contralateral to the side of the pain, C3 (left hemisphere) or C4 (right hemisphere). The cathode will be positioned supraorbital contralateral to the anode. The size of the electrodes will be 35 cm² (5 x 7 cm), surrounded by a sponge soaked in saline solution. The intensity of the current will be of 2 mA, time of application of the ETCC of 20 minutes, 5x / week, totaling 10 sessions. 30‐day follow‐up (evaluations). The sham intervention will be performed with identical assembly to the active intervention, but will remain active for only 60 seconds. The application of the tDCS will be performed by a therapist who will not participate in the evaluations. Physical therapy will consist of passive activities of the paretic upper limb (massage, stretching and passive joint movements) that will be performed by the therapist, lasting 20 minutes. Subsequently, tDCS electrodes (active or sham) will be placed on the injured motor cortex and, in conjunction with stimulation, the patient will perform active or active movements assisted with the upper limbs with the aid of a cycloergometer (Acte Sports, model E5). The following evaluations will be performed: pre‐post, post‐intervention and 30‐day follow‐up. The following evaluations will be performed: pain evaluation (EVA pain analogue scale), motor function (fugl‐meyer scale), shoulder and pain specific dysfunctions and disabilities Disability Index (SPADI), to compare the impact of upper arm dislocations (DASH), to evaluate possible depressive symptoms (Beck Depression Inventory ‐ BDI), to evaluate possible (Pittsburgh, PA), to evaluate the quality of life CONDITION: C10.228.140.300.775 C10.597.617.133.700 Stroke; Shoulder Pain ; C10.228.140.300.775 ; C10.597.617.133.700 PRIMARY OUTCOME: To compare the effects of physical therapy associated with tDCS on the effects of physical therapy alone, on the sensation of pain in patients affected by painful shoulder after stroke. SECONDARY OUTCOME: To compare the effects of tDCS associated physical therapy on the effects of physical therapy alone, on motor control and on the functionality of the paretic upper limb of patients with painful shoulder after stroke. ; To compare the effects of physical therapy associated with tDCS on the effects of physical therapy alone, on the quality of life and participation of patients affected by painful shoulder after stroke. ; To compare the effects of physical therapy associated with tDCS on the effects of physical therapy only, on cardiorespiratory parameters of blood pressure (BP), heart rate (HR) and respiratory rate. ; ; INCLUSION CRITERIA: Adults over 21 years of age; diagnosed with chronic stroke and presenting evidence of a clinical state of painful shoulder.