Red beetroot extract accelerates recovery of nonlinear dynamics of heart rate variability following exercise: A randomized trial

  • Cicero Jonas R Benjamim Department of Internal Medicine, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil.
  • Rafael Rodrigues dos Santos Department of Physiology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil.
  • Andrey Porto Autonomic Nervous System Center (CESNA), Sao Paulo State University, UNESP, Marilia-SP, Brazil.
  • Carlos Roberto Bueno Junior Department of Internal Medicine, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil.
  • David M. Garner Autonomic Nervous System Center (CESNA), Sao Paulo State University, UNESP, Marilia-SP, Brazil; Cardiorespiratory Research Group, Department of Biological and Medical Sciences, Faculty of Health and Life Sciences, Oxford Brookes University, Headington Campus, Oxford, OX3 0BP, United Kingdom.
  • Vitor Valenti Autonomic Nervous System Center (CESNA), Sao Paulo State University, UNESP, Marilia-SP, Brazil.
Keywords: Autonomic Nervous System, Beta vulgaris L, Heart, Heart Rate, Cardiovascular physiology

Abstract

Introduction: Studying the behavior on nonlinear HRV indexes in situations mediated by exercise may reveal other ways to analyze HRV recovery after stress situations. To investigate the acute effects of beet extract on autonomic recovery following an acute resistance exercise session. Methods: This is a randomized, crossover, double-blind and placebo-controlled trial. We assessed 12 healthy male adults who participated in two protocols in randomized days: Beetroot extract (600mg in capsule) and Placebo (600mg in capsule). Both protocols were applied 120 minutes prior to an exercise resistance session (75% 1RM). Nonlinear dynamics of HRV (Symbolic analysis, SampEn, DFA and HR fragmentation) were studied before, during exercise and during recovery from strength exercise. Results: Beetroot extract protocol intensified the recovery of the symbolic analysis of HRV via index 0V% (zero opposite variations) and 2UV% (two unlike variations); accelerating the recovery of fractal analysis (DFA); nevertheless, it was unable to trigger changes during recovery in SampEn and HR fragmentation. Conclusion: Ingestion of beetroot extract prior to resistance exercise improves nonlinear HRV dynamical autonomic recovery following physical effort.

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Published
2023-12-28
How to Cite
Benjamim, C. J. R., Santos, R. R. dos, Porto, A., Bueno Junior, C. R., Garner, D. M., & Valenti, V. (2023). Red beetroot extract accelerates recovery of nonlinear dynamics of heart rate variability following exercise: A randomized trial. RBNE - Brazilian Journal of Sports Nutrition, 17(106), 585-599. Retrieved from https://www.rbne.com.br/index.php/rbne/article/view/2192
Issue
Vol. 17 No. 106 (2023)
Section
Scientific Articles - Original

Copyright (c) 2023 Cicero Jonas R Benjamim, Rafael Rodrigues dos Santos, Andrey Porto, Carlos Roberto Bueno Junior, David M. Garner, Vitor Valenti

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