Effects of Transcranial Direct Current Stimulation (tDCS) on Rotator Cuff Fatigue.

Effects of Transcranial Direct Current Stimulation (tDCS) on Rotator Cuff Fatigue. A Randomized, Sham-controlled, Double-blind, Crossover Study.

The aim of this study will be to determine the effects of active tDCS on rotator cuff fatigue. This study will be a randomized, double-blind, sham-controlled, cross-over clinical trial based on non-probabilistic sampling for convenience, comprising a sample of 20 active asymptomatic subjects of all genders and aged between 18 and 35 years old. Subjects will be recruited via social networks, WhatsApp and emails and must be currently engaged in moderate physical activity (assessed by the IPAQ questionnaire) and asymptomatic at the time of assessment. In addition, participants will be asked not to perform any type of strenuous exercise and do not drink alcoholic or caffeinated beverages during the time the work is performed. The study will consist of three sessions, with an interval of 72 hours between them.

Inclusion Criteria:

• Age ranging between 18 to 35 years, all genders.
• Healthy subjects
• Moderate physical activity (evaluated by IPAQ questionnaire)
• Do not perform any exhausting exercise and do not drink alcoholic or caffeinated beverages during the time the work is performed.

Exclusion Criteria:

• Subjects with trauma in the last three weeks or previous surgeries on the upper extremity, patients with pre-existing neurological or rheumatic conditions, pregnancy, medical history of epilepsy the convulsive event, subjects under analgesic drug treatment or have ingested drugs with central action in the last 72 hours.