Abstract Title:

Effects of chronic beetroot juice supplementation on maximum oxygen uptake, velocity associated with maximum oxygen uptake, and peak velocity in recreational runners: a double-blinded, randomized and crossover study.

Abstract Source:

Eur J Appl Physiol. 2019 Feb 12. Epub 2019 Feb 12. PMID: 30747267

Abstract Author(s):

Talitha F de Castro, Francisco de Assis Manoel, Diogo H Figueiredo, Diego H Figueiredo, Fabiana Andrade Machado

Article Affiliation:

Talitha F de Castro


PURPOSE: This study investigated the effects of chronic 3-day beetroot juice (BRJ) supplementation on maximum oxygen uptake (VO), velocity associated with VO(vVO), and peak velocity (V) in recreational runners.

METHODS: Thirteen male recreational runners (age 28.2 ± 3.0 years, height 176.8 ± 0.1 cm, body mass 74.4 ± 9.5 kg) performed four tests on a treadmill in a randomized, double-blind, crossover design: two maximum incremental tests to determine VOand vVOand two tests to determine V. Trials were performed following 3 days of supplementation of NO-rich BRJ in natura (8.4 mmol NO day) or BRJ NO-depleted placebo (0.01 mmol NO day), with the last dose being ingested 2 h before each test. During the tests, maximum heart rate (HR), maximal rating of perceived exertion (RPE), pre- and post-test glucose concentrations (GlucGluc), and peak blood lactate concentration were determined.

RESULTS: VOwas higher following BRJ vs PLA (46.6 ± 6.4 vs 45.1 ± 5.8 mL kg min; P = 0.022), as well as vVO(14.5 ± 0.8 vs 13.9 ± 1.0 km hP = 0.024) and V(15.5 ± 1.1 vs 15.2 ± 1.2 km hP = 0.038), with no differences in the other variables.

CONCLUSION: Consumption of NO-rich BRJ in natura (8.4 mmol NO day) once per day for 3 days improved VO, vVOand Vin recreational runners without changing the other analyzed variables.

Study Type : Human Study
Additional Links

Print Options

Key Research Topics

Sayer Ji
Founder of GreenMedInfo.com

Subscribe to our informative Newsletter & get Nature's Evidence-Based Pharmacy

Our newsletter serves 500,000 with essential news, research & healthy tips, daily.

Download Now

500+ pages of Natural Medicine Alternatives and Information.

This website is for information purposes only. By providing the information contained herein we are not diagnosing, treating, curing, mitigating, or preventing any type of disease or medical condition. Before beginning any type of natural, integrative or conventional treatment regimen, it is advisable to seek the advice of a licensed healthcare professional.

© Copyright 2008-2022 GreenMedInfo.com, Journal Articles copyright of original owners, MeSH copyright NLM.