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Abstract Title:

Beetroot () Extract Acutely Improves Heart Rate Variability Recovery Following Strength Exercise: A Randomized, Double-Blind, Placebo-Controlled Crossover Trial-Pilot Study.

Abstract Source:

J Am Coll Nutr. 2020 May 29:1-10. Epub 2020 May 29. PMID: 32469260

Abstract Author(s):

Cicero Jonas R Benjamim, Francisco Wellington S Júnior, MariaÍris L S de Figueirêdo, Cicera Josilânia R Benjamim, Taisy C Ferro Cavalcante, Amanda A Marcelino da Silva, Larissa Raylane L Monteiro, Milana Drumond R Santana, David M Garner, Vitor E Valenti

Article Affiliation:

Cicero Jonas R Benjamim

Abstract:

We assessed the acute effect of beetroot extract intake on cardiovascular and autonomic recovery subsequent to strength exercise.This is a crossover, randomized, double-blind and placebo-controlled trial. We assessed 16 subjects but only 12 healthy male adults completed the two protocols in two randomized days: Beetroot extract (600 mg in capsule) and placebo (600 mg starch in capsule). Beetroot extract or placebo was ingested, the subjects endured 120 minutes seated at rest, followed by a 75% 1RM strength exercise and then remained seated for 60 minutes at rest. Cardiorespiratory parameters, heart rate (HR) variability (HRV) (SDNN, rMSSD, pNN50, SD1, SD2 HF [ms]) were estimated before, during exercise and during recovery from exercise.ingestion of beetroot extract before exercise: accelerates the recovery of SBP following physical effort; improves HR recovery to baseline resting levels (beetroot protocol: change in∼62% vs. placebo protocol: change in ∼80%), and intensifies the return of vagal HR control during recovery after exercise.Beetroot extract acutely improved cardiovascular and autonomic recovery after exercise.

Study Type : Human Study

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