Effects of Beetroot Juice Supplementation on a 30-s High-Intensity Inertial Cycle Ergometer Test.
Nutrients
; 9(12)2017 Dec 15.
Article
em En
| MEDLINE
| ID: mdl-29244746
ABSTRACT
Background:
Beetroot juice (BJ) is rich in inorganic nitrates and has proved effective at increasing blood nitric oxide (NO) levels. When used as a supplement BJ has shown an ergogenic effect on cardiorespiratory resistance exercise modalities, yet few studies have examined its impact on high intensity efforts.Objective:
To assess the effects of BJ intake on anaerobic performance in a Wingate test.Methods:
Fifteen trained men (age 21.46 ± 1.72 years, height 1.78 ± 0.07 cm and weight 76.90 ± 8.67 kg) undertook a 30-s maximum intensity test on an inertial cycle ergometer after drinking 70 mL of BJ (5.6 mmol NO3-) or placebo.Results:
Despite no impacts of BJ on the mean power recorded during the test, improvements were produced in peak power (6%) (p = 0.034), average power 0-15 s (6.7%) (p = 0.048) and final blood lactate levels (82.6%) (p < 0.001), and there was a trend towards a shorter time taken to attain peak power (-8.4%) (p = 0.055).Conclusions:
Supplementation with BJ has an ergonomic effect on maximum power output and on average power during the first 15 s of a 30-s maximum intensity inertial cycle ergometer test.Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Exercício Físico
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Beta vulgaris
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Sucos de Frutas e Vegetais
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Aptidão Cardiorrespiratória
Tipo de estudo:
Clinical_trials
Limite:
Adult
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Female
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Humans
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Male
Idioma:
En
Ano de publicação:
2017
Tipo de documento:
Article