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Journal of Physical Education

versão On-line ISSN 2448-2455

Resumo

SALVADOR, Mayndra Giusti et al. TRANSCRANIAL DIRECT CURRENT STIMULATION AND MANUAL ASYMMETRIES: THE EFFECT OF THE STIMULATION ON THE MANUAL DEXTERITY. J. Phys. Educ. [online]. 2017, vol.28, e2837.  Epub 26-Out-2017. ISSN 2448-2455.  http://dx.doi.org/10.4025/jphyseduc.v28i1.2837.

The aim of this study was to evaluate the effect of transcranial direct-current stimulation (tDCS) on the primary motor cortex (M1) in the manual performance asymmetries in a manual dexterity tasks. The sample consisted of 28 volunteers, right-handed, men and without neurological impairment. The task (Grooved Pegboard) consisted of inserting 25 pins in 25 receptacles, as soon as possible. The task was executed in the pretest with both hands to define the level of manual asymmetry. tDCS or Sham were applied a week after the pretest, then the subjects were evaluated in the post-test. The results revealed that the effects of tDCS in M1 did not reduce asymmetries in a manual dexterity task. However, only the tDCS group improved the performance from pretest to the posttest (p <0.05) in both hands. Stimulation of the right M1 may have generated benefits in the contralateral M1.

Palavras-chave : Motor dexterity; Electrical stimulation; Functional laterality..

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