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Postexercise blood pressure and autonomic responses after aerobic exercise following anodal tDCS applied over the medial prefrontal cortex.
Neurosci Lett 2019; 711:134444NL

Abstract

Transcranial direct current stimulation (tDCS) is acknowledged to modulate autonomic cardiac activity and hemodynamic responses at rest and during exercise. However, its potential to optimize postexercise hypotension (PEH) has not been investigated. This study investigated the effects of anodal tDCS applied over the medial prefrontal cortex (mPFC) upon blood pressure (BP) and heart rate variability (HRV) throughout 60 min following acute aerobic exercise. Fifteen young men (27.5 ± 5.2 yrs; 72.9 ± 8 kg; 170 ± 0.1 cm; 124.1 ± 1.9/67.7 ± 2.1 mmHg) underwent three counterbalanced experimental sessions: a) anodal tDCS + exercise (tDCS); b) sham stimulation + exercise (SHAM); c) non-exercise control (CONT). Exercise consisted in 50-min cycling at 65-70% heart rate reserve. BP and HRV were assessed during 60-min postexercise. Mean reduction in systolic BP occurred after tDCS vs. SHAM (-4.1 mmHg; P=0.03) and CONT (-5.8 mmHg; P=0.003), and in MAP vs. CONT (-3.0 mmHg, P=0.03). Parasympathetic activity lowered after tDCS and SHAM vs. CONT, as respectively reflected by R-R intervals (-328.1% and -396.4%; P = 0.001), SDNN (-155.7% and -193.4%; P = 0.006), and pNN50 (-272.3% and -259.1%; P = 0.021). There was a clear tendency of increased sympatho-vagal balance vs. CONT (P = 0.387) after SHAM (+246.3%), but not tDCS (+25.9%). In conclusion, an aerobic exercise bout preceded by tDCS applied over mPFC induced PEH in normotensive men. Parasympathetic activity lowered, while sympatho-vagal balance increased after both tDCS and SHAM vs. CONT. However, these responses seemed to be tempered by anodal stimulation, which might help explaining the occurrence of PEH after tDCS and not SHAM. These findings warrant further research on the role of tDCS within exercise programs aiming at BP management.

Authors+Show Affiliations

Physical Activity and Health Promotion Laboratory (LABSAU), Institute of Physical Education and Sports, Rio de Janeiro State University, Rio de Janeiro, RJ, Brazil; Graduate Program in Physical Activity Sciences, Salgado de Oliveira University, Niteroi, RJ, Brazil.Graduate Program in Physical Activity Sciences, Salgado de Oliveira University, Niteroi, RJ, Brazil.Graduate Program in Physical Activity Sciences, Salgado de Oliveira University, Niteroi, RJ, Brazil.Graduate Program in Physical Activity Sciences, Salgado de Oliveira University, Niteroi, RJ, Brazil.Physical Activity and Health Promotion Laboratory (LABSAU), Institute of Physical Education and Sports, Rio de Janeiro State University, Rio de Janeiro, RJ, Brazil; Graduate Program in Physical Activity Sciences, Salgado de Oliveira University, Niteroi, RJ, Brazil. Electronic address: walacemonteiro@uol.com.br.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

31445061

Citation

Farinatti, Paulo, et al. "Postexercise Blood Pressure and Autonomic Responses After Aerobic Exercise Following Anodal tDCS Applied Over the Medial Prefrontal Cortex." Neuroscience Letters, vol. 711, 2019, p. 134444.
Farinatti P, Cordeiro R, Vogel M, et al. Postexercise blood pressure and autonomic responses after aerobic exercise following anodal tDCS applied over the medial prefrontal cortex. Neurosci Lett. 2019;711:134444.
Farinatti, P., Cordeiro, R., Vogel, M., Machado, S., & Monteiro, W. (2019). Postexercise blood pressure and autonomic responses after aerobic exercise following anodal tDCS applied over the medial prefrontal cortex. Neuroscience Letters, 711, p. 134444. doi:10.1016/j.neulet.2019.134444.
Farinatti P, et al. Postexercise Blood Pressure and Autonomic Responses After Aerobic Exercise Following Anodal tDCS Applied Over the Medial Prefrontal Cortex. Neurosci Lett. 2019 Aug 21;711:134444. PubMed PMID: 31445061.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Postexercise blood pressure and autonomic responses after aerobic exercise following anodal tDCS applied over the medial prefrontal cortex. AU - Farinatti,Paulo, AU - Cordeiro,Ricardo, AU - Vogel,Marcus, AU - Machado,Sergio, AU - Monteiro,Walace, Y1 - 2019/08/21/ PY - 2019/04/10/received PY - 2019/08/07/revised PY - 2019/08/20/accepted PY - 2019/8/25/pubmed PY - 2019/8/25/medline PY - 2019/8/25/entrez KW - Autonomic nervous system KW - Cycling KW - Health KW - Heart rate variability KW - Non-invasive brain stimulation KW - Postexercise hypotension SP - 134444 EP - 134444 JF - Neuroscience letters JO - Neurosci. Lett. VL - 711 N2 - Transcranial direct current stimulation (tDCS) is acknowledged to modulate autonomic cardiac activity and hemodynamic responses at rest and during exercise. However, its potential to optimize postexercise hypotension (PEH) has not been investigated. This study investigated the effects of anodal tDCS applied over the medial prefrontal cortex (mPFC) upon blood pressure (BP) and heart rate variability (HRV) throughout 60 min following acute aerobic exercise. Fifteen young men (27.5 ± 5.2 yrs; 72.9 ± 8 kg; 170 ± 0.1 cm; 124.1 ± 1.9/67.7 ± 2.1 mmHg) underwent three counterbalanced experimental sessions: a) anodal tDCS + exercise (tDCS); b) sham stimulation + exercise (SHAM); c) non-exercise control (CONT). Exercise consisted in 50-min cycling at 65-70% heart rate reserve. BP and HRV were assessed during 60-min postexercise. Mean reduction in systolic BP occurred after tDCS vs. SHAM (-4.1 mmHg; P=0.03) and CONT (-5.8 mmHg; P=0.003), and in MAP vs. CONT (-3.0 mmHg, P=0.03). Parasympathetic activity lowered after tDCS and SHAM vs. CONT, as respectively reflected by R-R intervals (-328.1% and -396.4%; P = 0.001), SDNN (-155.7% and -193.4%; P = 0.006), and pNN50 (-272.3% and -259.1%; P = 0.021). There was a clear tendency of increased sympatho-vagal balance vs. CONT (P = 0.387) after SHAM (+246.3%), but not tDCS (+25.9%). In conclusion, an aerobic exercise bout preceded by tDCS applied over mPFC induced PEH in normotensive men. Parasympathetic activity lowered, while sympatho-vagal balance increased after both tDCS and SHAM vs. CONT. However, these responses seemed to be tempered by anodal stimulation, which might help explaining the occurrence of PEH after tDCS and not SHAM. These findings warrant further research on the role of tDCS within exercise programs aiming at BP management. SN - 1872-7972 UR - https://www.unboundmedicine.com/medline/citation/31445061/Postexercise_blood_pressure_and_autonomic_responses_after_aerobic_exercise_following_anodal_tDCS_applied_over_the_medial_prefrontal_cortex L2 - https://linkinghub.elsevier.com/retrieve/pii/S0304-3940(19)30547-6 DB - PRIME DP - Unbound Medicine ER -