PDF(Pubmed)
Abstract：
The search for increased performance and physical performance are linked to the use of ergogenic resources. The vertical jump is one of the measures commonly used to evaluate the performance of lower limbs in athletes. Transcranial direct current stimulation (tDCS) is a non-invasive, safe, economically viable technique that can modulate cortical excitability, which can influence the increase in the performance of athletes in general. This study aimed to investigate whether the use of tDCS on the primary motor cortex (M1) improves the performance of soccer players. A cross-sectional study was conducted. Twenty-seven players were randomized into three groups: Active tDCS group (n = 9), Sham group (n = 9), and control group (n = 9). Stimulation was applied at 2 mA for 15 min using a cephalic mount. Visual Pain Scale (VAS) and Subjective Recovery Scale (SRS) were monitored before and after tDCS. In addition, the participants performed the Countermovement Jump (CMJ) before and after the stimulation intercalated with Heart Rate (HR) and Rating of Perceived Exertion (RPE CR-10). No differences were found in any of the performance variables analyzed (p > 0.05) nor in the responses of HR (p > 0.05), RPE (p > 0.05), VAS (p > 0.05), and SRS (p > 0.05) between groups. The tDCS in M1 did not change the performance of the vertical jump, and there was no improvement in the subjective scales. New studies should also be developed with different stimulus intensities in different cortical areas and sports modalities.
摘要：
寻求提高性能和物理性能与使用人体资源有关。垂直跳是评价运动员下肢表现的常用指标之一。经颅直流电刺激(tDCS)是非侵入性的,安全,经济上可行的技术，可以调节皮质兴奋性，这会影响运动员总体表现的提高。这项研究旨在调查在初级运动皮层（M1）上使用tDCS是否可以改善足球运动员的表现。进行了横断面研究。27名运动员被随机分为三组：活动tDCS组(n=9)，假组（n=9），对照组(n=9)。使用头部支架以2mA施加刺激15分钟。在tDCS前后监测视觉疼痛量表（VAS）和主观恢复量表（SRS）。此外,参与者在插入心率(HR)和感知运动评分(RPECR-10)的刺激前后进行了逆运动跳跃(CMJ).在分析的任何性能变量（p>0.05）和HR的响应（p>0.05）中都没有发现差异，RPE(p>0.05)，VAS（p>0.05），和SRS（p>0.05）组间。M1中的tDCS没有改变垂直跳跃的性能，主观尺度没有改善。还应该在不同的皮质区域和运动方式中开发具有不同刺激强度的新研究。
