Abstract：
Recently, transcranial electrical stimulation (tES) has gained increasing popularity among researchers, especially for recovery and improvement, but interpretation of these results is difficult due to variations in study methods and outcome measurements. The main goal of this study was to better understand the postural and balance indicators affected by cerebellar tES, as the cerebellum is the main brain region responsible for controlling balance. For this systematic literature review, three databases were searched for articles where the cerebellum was stimulated by any type of tES in either healthy participants or those with neurologic disorders. Postural, dynamic, and/or static stability measurements were recorded, and risk of bias was assessed on the PEDro scale. A total of 21 studies were included in the analysis. 17 studies reported improvements after application of tES. 14 studies stimulated the cerebellum unilaterally and 15 used this modality for 20 min. Moreover, all studies exclusively used transcranial direct current as the type of stimulation. Evaluation of PEDro results showed that studies included in the analysis utilized good methodology. Although there were some inconsistencies in study results, overall, it was demonstrated that tES can improve balance and postural index under both healthy and neurological conditions. Further research of bilateral cerebellar stimulation or the use of transcranial alternating current stimulation, transcranial random noise stimulation, and transcranial pulsed current stimulation is needed for a more comprehensive assessment of the potential positive effects of cerebellar tES on the balance system.
摘要：
最近,经颅电刺激（tES）在研究人员中越来越受欢迎，特别是恢复和改善，但是由于研究方法和结果测量的差异，对这些结果的解释很困难。这项研究的主要目的是更好地了解小脑tES影响的姿势和平衡指标，因为小脑是负责控制平衡的主要大脑区域。对于这篇系统的文献综述，本研究在三个数据库中搜索了健康参与者或患有神经系统疾病的参与者小脑受任何类型的tES刺激的文章.姿势,动态,和/或静态稳定性测量被记录，在PEDro量表上评估偏倚风险.共21项研究纳入分析。17项研究报告了应用tES后的改善。14项研究单侧刺激小脑，15项使用这种方式20分钟。此外，所有研究都仅使用经颅直流电作为刺激类型.对PEDro结果的评估表明，分析中包含的研究使用了良好的方法。尽管研究结果存在一些不一致之处，总的来说,已证明tES在健康和神经系统条件下都可以改善平衡和姿势指数。进一步研究双侧小脑刺激或使用经颅交流电刺激，经颅随机噪声刺激，需要经颅脉冲电流刺激，以更全面地评估小脑tES对平衡系统的潜在积极影响。
