The Cerebellum

, Volume 16, Issue 4, pp 872–875 | Cite as

Cerebellar Transcranial Direct Current Stimulation (ctDCS) Impairs Balance Control in Healthy Individuals

  • Águida Foerster
  • Lorena Melo
  • Marina Mello
  • Rebeca Castro
  • Lívia Shirahige
  • Sérgio Rocha
  • Kátia Monte-Silva
Short Report

Abstract

The cerebellum plays an important role in the planning, initiation and stability of movements, as well as in postural control and balance. Modulation of neural regions underlying balance control may be a potential alternative to treat balance impairments in cerebellar patients. Transcranial direct current stimulation (tDCS) is a noninvasive and safe tool capable to modulate cerebellar activity. We aim to investigate the effects of cerebellar tDCS (ctDCS) on postural balance in healthy individuals. Fifteen healthy and right-handed subjects were submitted to three sessions of ctDCS (anodal, cathodal and sham), separated by at least 48 h. In each session, tests of static (right and left Athlete Single Leg tests) and dynamic balance (Limits of Stability test) were performed using the Biodex Balance System before and immediately after the ctDCS. The results revealed that cathodal ctDCS impaired static balance of healthy individuals, reflected in higher scores on overall stability index when compared to baseline for right (p = 0.034) and left (p = 0.01) Athlete Single Leg test. In addition, we found significant impairment for left Athlete Single Leg test in comparison to sham stimulation (p = 0.04). As far as we know, this is the first study that points changes on balance control after ctDCS in healthy individuals. This finding raises insights to further investigation about cerebellar modulation for neurological patients.

Keywords

Transcranial direct current stimulation (tDCS) Cerebellum Postural balance 

Notes

Compliance with Ethical Standards

Conflict of Interest

The authors declare that they have no conflict of interest.

Funding

No funding was received for this study. Kátia Monte-Silva is supported by CNPq.

Supplementary material

12311_2017_863_MOESM1_ESM.docx (15 kb)
Table S1 (DOCX 15 kb).

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Copyright information

© Springer Science+Business Media New York 2017

Authors and Affiliations

  • Águida Foerster
    • 1
    • 2
  • Lorena Melo
    • 1
  • Marina Mello
    • 1
  • Rebeca Castro
    • 1
  • Lívia Shirahige
    • 1
  • Sérgio Rocha
    • 1
  • Kátia Monte-Silva
    • 1
  1. 1.Physical Therapy Department, Applied Neuroscience LaboratoryUniversidade Federal de PernambucoRecifeBrazil
  2. 2.Leibniz Research Centre for Working Environment and Human FactorsDortmundGermany

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