Department of Physical Education, Federal University of Sergipe (UFS), São Cristóvão, Brazil.
Graduate Program in Physical Education, Federal University of Sergipe (UFS), São Cristóvão, Brazil.
Sci Rep. 2023 Jun 8;13(1):9362. doi: 10.1038/s41598-023-36093-5.
The benefits of transcranial direct current stimulation (tDCS) on brain function, cognitive response, and motor ability are well described in scientific literature. Nevertheless, the effects of tDCS on athletes' performance remain unclear. To compare the acute effects of tDCS on the running performance of 5000 m (m) runners. Eighteen athletes were randomized into Anodal (n = 9) groups that received tDCS for 20 min and 2 mA, and Sham (n = 9), in the motor cortex region (M1). Running time in 5000 m, speed, perceived exertion (RPE), internal load and peak torque (Pt) were evaluated. The Shapiro-Wilk test followed by a paired Student's t-test was used to compare Pt and total time to complete the run between the groups. The running time and speed of the Anodal group (p = 0.02; 95% CI 0.11-2.32; d = 1.24) was lower than the Sham group (p = 0.02, 95% CI 0.05-2.20; d = 1.15). However, no difference was found in Pt (p = 0.70; 95% CI - 0.75 to 1.11; d = 0.18), RPE (p = 0.23; 95% CI - 1.55 to 0.39; d = 0.60) and internal charge (p = 0.73; 95% CI - 0.77 to 1.09; d = 0.17). Our data indicate that tDCS can acutely optimize the time and speed of 5000 m runners. However, no alterations were found for Pt and RPE.
经颅直流电刺激（tDCS）对大脑功能、认知反应和运动能力的益处已在科学文献中得到充分描述。然而，tDCS 对运动员表现的影响仍不清楚。为了比较 tDCS 对 5000 米（m）跑步运动员表现的急性影响。将 18 名运动员随机分为阳极（n = 9）组，接受 20 分钟和 2 mA 的 tDCS，以及假（n = 9）组，刺激运动皮层区域（M1）。评估 5000 米跑的用时、速度、感知用力（RPE）、内部负荷和峰值扭矩（Pt）。采用 Shapiro-Wilk 检验后，对组间 Pt 和完成跑步的总时间进行配对学生 t 检验。阳极组的跑步时间和速度（p = 0.02；95%CI 0.11-2.32；d = 1.24）低于假组（p = 0.02，95%CI 0.05-2.20；d = 1.15）。然而，Pt 无差异（p = 0.70；95%CI-0.75 至 1.11；d = 0.18）、RPE（p = 0.23；95%CI-1.55 至 0.39；d = 0.60）和内部负荷（p = 0.73；95%CI-0.77 至 1.09；d = 0.17）。我们的数据表明，tDCS 可以急性优化 5000 米跑步运动员的时间和速度。然而，Pt 和 RPE 没有变化。
