Loughborough University
Leicestershire, UK
LE11 3TU
+44 (0)1509 263171
Loughborough University

Loughborough University Institutional Repository

Please use this identifier to cite or link to this item: https://dspace.lboro.ac.uk/2134/37745

Title: Effect of beetroot juice supplementation on mood, perceived exertion and performance during a 30 s Wingate test
Authors: Jodra, Pablo
Dominguez, Raul
Sanchez-Oliver, Antonio
Veiga-Herreros, Pablo
Bailey, Stephen J.
Keywords: Dietary supplement
Ergogenic aid
High-intensity exercise
Mood states
Issue Date: 2019
Publisher: © Human Kinetics
Citation: JODRA, P. ... et al, 2019. Effect of beetroot juice supplementation on mood, perceived exertion and performance during a 30 s Wingate test. International Journal of Sports Physiology and Performance, doi:10.1123/ijspp.2019-0149.
Abstract: Purpose: Dietary supplementation with inorganic nitrate (NO3-) can enhance high- intensity exercise performance by improving skeletal muscle contractility and metabolism, but the extent to which this might be linked to altered psychophysiological processes is presently unclear. The purpose of this study was to assess the effects of NO3--rich beetroot juice (BJ) supplementation on profile of mood states (POMS), ratings of perceived exertion (RPE) and performance in a 30 s Wingate cycle test. Methods: In a double blind, randomized, crossover study, 15 subjects completed two laboratory sessions after ingesting NO3--rich or NO3--depleted (placebo) BJ. Participants initially completed the POMS questionnaire. Subsequently, participants completed a warm-up followed by a 30 s all-out Wingate cycling test. After the Wingate test, participants immediately indicated the RPE of their leg muscles (RPEmuscular), cardiovascular system (RPEcardio) and general RPE (RPEgeneral). Results: Compared to the placebo condition, supplementation with BJ increased peak power output (Wpeak) (+4.4%, 11.5 ± 0.7 vs. 11.1 ± 1.0 W·kg-1, p = 0.039) and lowered the time taken to reach Wpeak (7.3 ± 0.9 vs. 8.7 ± 1.5 s, p = 0.002) during the Wingate test. The POMS score linked to tension was increased prior to the Wingate test (4.8 ± 3.0 vs. 3.4 ± 2.4, p = 0.040), and RPE muscular was lowered immediately following the Wingate test (17.7 ± 1.6 vs. 18.3 ± 1.0, p = 0.031), after BJ compared to placebo ingestion. Conclusions: Acute BJ supplementation improved pre-exercise tension, and 30 s Wingate test performance, and lowered post-exercise RPE muscular.
Description: Accepted author manuscript version reprinted, by permission, from International Journal of Sports Physiology and Performance, 2019, https://doi.org/10.1123/ijspp.2019-0149. © Human Kinetics, Inc.
Version: Accepted for publication
DOI: 10.1123/ijspp.2019-0149
URI: https://dspace.lboro.ac.uk/2134/37745
Publisher Link: https://doi.org/10.1123/ijspp.2019-0149
ISSN: 1555-0265
Appears in Collections:Published Articles (Sport, Exercise and Health Sciences)

Files associated with this item:

File Description SizeFormat
Accepted.pdfAccepted version422.01 kBAdobe PDFView/Open


SFX Query

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.