| Transcranial direct current stimulation influences the cardiac autonomic nervous control. | |
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MedLine Citation:
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PMID: 21527314 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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To investigate whether the manipulation of brain excitability by transcranial direct current stimulation (tDCS) modulates the heart rate variability (HRV), the effect of tDCS applied at rest on the left temporal lobe in athletes (AG) and non-athletes (NAG) was evaluated. The HRV parameters (natural logarithms of LF, HF, and LF/HF) was assessed in 20 healthy men before, and immediately after tDCS and sham stimulation. After anodal tDCS in AG the parasympathetic activity (HF(log)) increased (P<0.01) and the sympathetic activity (LF(log)) and sympatho-vagal balance (LF/HF(log)) decreased (P<0.01), whereas no significant effects were detected in NAG (P>0.05). No significant changes in HRV indexes were provoked by sham stimulation in both AG and NAG (P>0.05). In conclusion, tDCS applied on the left temporal lobe significantly increased the overall HRV in AG, enhancing the parasympathetic and decreasing the sympathetic modulation of heart rate. Consequently the sympatho-vagal balance decreased at rest in AG but not in NAG. Releasing a weak electric current to stimulate selected brain areas may induce favorable effects on the autonomic control to the heart in highly fit subjects. |
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Authors:
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Rafael Ayres Montenegro; Paulo de Tarso Veras Farinatti; Eduardo Bodnariuc Fontes; Pedro Paulo da Silva Soares; Felipe Amorim da Cunha; Jonas Lírio Gurgel; Flávia Porto; Edilson Serpeloni Cyrino; Alexandre Hideki Okano |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-4-17 |
Journal Detail:
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Title: Neuroscience letters Volume: - ISSN: 1872-7972 ISO Abbreviation: - Publication Date: 2011 Apr |
Date Detail:
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Created Date: 2011-4-29 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 7600130 Medline TA: Neurosci Lett Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Copyright Information:
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Copyright © 2011. Published by Elsevier Ireland Ltd. |
Affiliation:
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Laboratory of Integrative Biology of Exercise (LABIEX), Department of Physical Education, Federal University of Rio Grande do Norte, Natal, Brazil; Physical Activity and Health Promotion Laboratory (LABSAU), Physical Education and Sports Institute, State University of Rio de Janeiro, Rio de Janeiro, Brazil. |
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