n/a
Abstract Title:

The effect of beetroot juice supplementation on repeat-sprint performance in hypoxia.

Abstract Source:

J Sports Sci. 2018 Jul 30:1-8. Epub 2018 Jul 30. PMID: 30058956

Abstract Author(s):

Georgina L Kent, Brian Dawson, Lars R McNaughton, Gregory R Cox, Louise M Burke, Peter Peeling

Article Affiliation:

Georgina L Kent

Abstract:

This investigation assessed the effect of dietary nitrate (NO) supplementation, in the form of beetroot juice (BR), on repeat-sprint performance in normoxia and normobaric hypoxia. 12 male team-sport athletes (age 22.3 ± 2.6 y, VO53.1 ± 8.7 mL.kg.min) completed three exercise trials involving a 10 min submaximal warm-up and 4 sets of cycling repeat-sprint efforts (RSE; 9 × 4 s) at sea level (CON), or at 3000 m simulated altitude following acute supplementation (140 mL) with BR (HYP; 13 mmol NO) or NOdepleted BR placebo (HYP). Peak (PPO) and mean (MPO) power output, plus work decrement were recorded during the RSE task, while oxygen consumption (VO) was measured during the warm-up. There were no significant differences observed between HYPand HYPfor PPO or MPO; however, work decrement was reduced in the first RSE set in HYPcompared with HYP. There was a moderate effect for VOto be lower following BR at the end of the 10 min warm-up (ES = 0.50 ± 0.51). Dietary NOmay not improve repeat-sprint performance in hypoxia but may reduce VOduring submaximal exercise. Therefore, BR supplementation may be more effective for performance improvement during predominantly aerobic exercise.

Study Type : Human Study

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 2008-2021 GreenMedInfo.com, Journal Articles copyright of original owners, MeSH copyright NLM.