Beetroot Extract and Its Influence on Cardiovascular and Autonomic Recovery From the Effort in Healthy Males

Beetroot Extract and Its Influence on Cardiovascular and Autonomic Recovery From the Effort in Healthy Males

There is no evidence that beetroot extract (Beta vulgaris L.) is advantageous for the recovery of cardiovascular parameters and the autonomic nervous system (ANS) after submaximal aerobic exercise. The objective of this study is to evaluate the effect of beetroot extract supplementation on the recovery of cardiorespiratory and autonomic parameters after a submaximal aerobic exercise session. Healthy male adults will perform a cross-over, randomized, double-blind, and placebo-controlled trial. Beetroot extract (600mg) or placebo (600mg) will be ingested 90 minutes before evaluation in randomized days. Systolic blood pressure (SBP), diastolic blood pressure (DBP), pulse pressure (PP), mean arterial pressure (MAP), heart rate (HR), and HR variability (HRV) indexes will be recorded at Rest and during 60 minutes of recovery from exercise.

Inclusion Criteria:

• Healthy males;
• Physically active according to International Physical Activity Questionnaire (IPAQ);
• 18 to 30 old years.

Exclusion Criteria:

• Body mass index BMI <18.5kg/m² and >29.9kg/m²;
• Smokers;
• Subjects undergoing pharmacotherapies;
• Musculoskeletal, metabolic, renal diseases;
• Root mean squared standard deviation of R-R intervals <15 milliseconds.