Portal de Periódicos da CAPES

Artigo Acesso aberto Produção Nacional Revisado por pares

BIBTEX RIS

Effects of Transcranial Direct Current Stimulation (tDCS) and Exercises Treadmill on Autonomic Modulation of Hemiparetic Patients Due To Stroke—Clinic Test, Controlled, Randomized, Double-Blind

2020; Frontiers Media; Volume: 10; Linguagem: Inglês

10.3389/fneur.2019.01402

1664-2295

Glauber Heinz, Kátia De Angelis, Simone Dal Corso, Maria Helena Gomes de Sousa, Ariane Viana, Fernando dos Santos, João Carlos Ferrari Corrêa, Fernanda Ishida Corrêa,

Pain Management and Treatment

Background: After a Stroke, there is an autonomic nervous system (ANS) changes. Transcranial Direct Current Stimulation (tDCS) can promote the reorganization of the affected circuits. Objective: To evaluate the effects of tDCS applied before a session of physical activity on the treadmill, in the modulation of the autonomic nervous system of post-stroke patients. Methodology: Cross-over study, were randomized 12 adult hemiparetic subjects in 2 groups, Group 1 (active tDCS before exercise on the treadmill) and Group 2 (sham tDCS before exercise on the treadmill). Stimulation times were 20 minutes; treadmill time was 20 minutes. The heart rate variability (HRV) and Variability of Systolic Blood Pressure (VSBP) were evaluated for 15 minutes, in 3 periods (pre and post tDCS and during exercise recovery on the treadmill). Results: There was no difference in the VSBP and the HRV between the groups, compared with the baseline data; however, in the intragroup analysis, the parasympathetic modulation after active tDCS increased by 18% over baseline by the RMSSD with IC 95% (-7.85 - -0.34). In group 1, the post-tDCS active and post-exercise periods presented a value of variance above baseline, indicating a better prognosis. In group 2, there was a significant reduction of 38% of Variance values (p = 0.003) after tDCS sham. Conclusion: tDCS does not generate immediate effects on HRV and APV, except for intragroup comparison, which has greater participation in parasympathetic tone in the group receiving active tDCS.