Int J Sports Med 2014; 35(06): 459-464
DOI: 10.1055/s-0033-1333769
Physiology & Biochemistry
© Georg Thieme Verlag KG Stuttgart · New York

Does Prefrontal Cortex Transcranial Direct Current Stimulation Influence the Oxygen Uptake at Rest and Post-exercise?

R. Montenegro
1  Physical Activity and Health Promotion Laboratory (LABSAU), Institute of Physical Education and Sports, Rio de Janeiro State University, Rio de Janeiro, Brazil
,
A. H. Okano
2  Departament of Sport Science, University of Campinas, Londrina, Brazil
,
F. A. Cunha
3  Physical Activity Sciences Graduate Program, Salgado de Oliveira University, Rio de Janeiro, Brazil
,
E. B. Fontes
4  SPORTS SCIENCE, University of CAMPINAS – UNICAMP, CAMPINAS, Brazil
,
P. Farinatti
5  School of Physical Education, Rio de Janeiro State University, Rio de Janeiro, Brazil
› Author Affiliations
Further Information

Publication History



accepted after revision 07 January 2013

Publication Date:
22 March 2013 (eFirst)

Abstract

The study evaluated the effect of transcranial direct current stimulation (tDCS) applied over prefrontal cortex on the oxygen uptake (V˙ O2) at rest and during post-exercise recovery. The V˙ O2 was assessed in eleven healthy subjects before, during tDCS (sham or anodal tDCS, 2 mA, 20 min), and 30-min following isocaloric aerobic exercise (~200 kcal). During tDCS, no changes were observed on V˙ O2 compared to baseline (P=0.95) and sham condition (P=0.85). The association between isocaloric exercise and anodal tDCS increased the V˙ O2 throughout 30-min recovery compared to sham condition (P<0.001). Therefore, the energy expenditure within the excess post-exercise oxygen consumption (EPOC) period, after anodal tDCS was approximately 19% higher compared to the sham condition (P<0.05). In conclusion, anodal tDCS applied on the prefrontal cortex combined with submaximal aerobic exercise increased the EPOC, enhancing the V˙ O2 and energy expenditure at least for 30-min of recovery.