Name: VINICIUS FLAVIO DO CARMO SOUZA
Publication date: 31/10/2025
Examining board:
Name |
Role |
|---|---|
| DANILO SALES BOCALINI | Examinador Interno |
| FERNANDO ZANELA DA SILVA ARÊAS | Examinador Externo |
| RICHARD DIEGO LEITE | Presidente |
Summary: Introduction: Transcranial Direct Current Stimulation (tDCS) has been investigated as a means to enhance strength and performance; however, little is known about the acute effects of tDCS applied simultaneously to two brain regions on strength enhancement and its influence on heart rate response, blood lactate concentration, perceived exertion, and pain. Objective: To analyze the effect of High-Definition Transcranial Direct Current Stimulation (tDCS-HD) applied simultaneously to two brain areas on performance and muscle strength in men engaged in resistance training. Materials and Methods: 20 male participants (age: 24 ± 2,7 years, height: 180 ± 6,70 cm, body mass 83,57 ± 17,57kg) underwent two isokinetic testing sessions within one week, with a 48-hour interval between them. One session was a baseline (pre-intervention) and the other a post-intervention session. Participants were randomly assigned, in a double-blind manner, to one of three groups: experimental, control, or sham. The device used to deliver tDCS-HD was the Startism 32, which applied a constant direct current of 1 mA. Results: Anodal tDCS-HD (1mA, 15 minutes) applied simultaneously to two brain regions did not improve strength or performance in healthy young adult males, nor did it reduce blood lactate concentration, pain (VAS), or heart rate.
