Acute ingestion of beetroot juice does not improve short-duration repeated sprint running performance in male team sport athletes

Reynolds, Ciara; Evans, Mark; Halpenny, Catherine; Hughes, Caoimhe; Jordan, Shawn S.; Quinn, Aoife; Hone, Michelle; Egan, Brendan

doi:10.1080/02640414.2020.1770409

Cited by 14 publications

(25 citation statements)

References 45 publications

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“…The dose, duration, and type of NO 3 − supplementation varied between studies. NO 3 − supplementation was administered as beetroot juice (n = 24) [34][35][36][37][38][39][40][41]51,[53][54][55][56][57][58][60][61][62][63][64][65][66]74,75], potassium NO 3 − (n = 1) [59], pomegranate extract (n = 1) [67], or as a high NO 3…”

Section: Study Characteristicsmentioning

confidence: 99%

“…Seven studies had a low risk of bias in the randomisation process [34,36,39,54,59,63,67] and the remaining twenty studies had some concerns [35,37,38,40,41,[51][52][53][55][56][57][58][60][61][62][64][65][66]74,75]. All studies had a low risk of bias for bias arising from period and carryover effects [34][35][36][37][38][39][40][41][51][52][53][54][55][56][57][58][59][60][61][62][63][64][65]…”

Section: Quality Assessmentmentioning

confidence: 99%

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Effects of Dietary Nitrate Supplementation on Performance during Single and Repeated Bouts of Short-Duration High-Intensity Exercise: A Systematic Review and Meta-Analysis of Randomised Controlled Trials

et al. 2023

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Inorganic nitrate (NO3−) has emerged as a potential ergogenic aid over the last couple of decades. While recent systematic reviews and meta-analyses have suggested some small positive effects of NO3− supplementation on performance across a range of exercise tasks, the effect of NO3− supplementation on performance during single and repeated bouts of short-duration, high-intensity exercise is unclear. This review was conducted following PRISMA guidelines. MEDLINE and SPORTDiscus were searched from inception to January 2023. A paired analysis model for cross-over trials was incorporated to perform a random effects meta-analysis for each performance outcome and to generate standardized mean differences (SMD) between the NO3− and placebo supplementation conditions. The systematic review and meta-analysis included 27 and 23 studies, respectively. Time to reach peak power (SMD: 0.75, p = 0.02), mean power output (SMD: 0.20, p = 0.02), and total distance covered in the Yo-Yo intermittent recovery level 1 test (SMD: 0.17, p < 0.0001) were all improved after NO3− supplementation. Dietary NO3− supplementation had small positive effects on some performance outcomes during single and repeated bouts of high-intensity exercise. Therefore, athletes competing in sports requiring single or repeated bouts of high-intensity exercise may benefit from NO3− supplementation.

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Section: Study Characteristicsmentioning

confidence: 99%

Section: Quality Assessmentmentioning

confidence: 99%

Effects of Dietary Nitrate Supplementation on Performance during Single and Repeated Bouts of Short-Duration High-Intensity Exercise: A Systematic Review and Meta-Analysis of Randomised Controlled Trials

et al. 2023

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“…A recent review article states that there are differences between acute and chronic supplementations (Rojas-Valverde et al, 2020). The authors state that chronic administration should be given 2 times a day in concentrations of ~5-6.5 mmol of NO3 (70 ml in the morning and 70 ml in the evening) (Kent et al 2019;Reynolds et al 2020). On the other hand, acute intake should be given 2-3 hours before exercise with 70 ml of a concentration of ~5-6.5 mmol of NO3 (Kokkinoplitis & Chester 2014;Thompson et al 2015).…”

Section: Discussionmentioning

confidence: 99%

Influence of Beetroot Supplementation on Oxygen Muscle Saturation of Semi-Professional Soccer Players Following a Repeated Sprint Test

Michailidis

2023

Central European Journal of Sport Sciences and Medicine

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Dietary nitrates have hemodynamic and metabolic effects on the body. This study aimed to investigate nitrate intake's effect on quadricep muscle oxygen saturation (StO2) of semi-professional soccer players during a repeated speed test (RSA). In a randomized, crossover design, 10 semi-professional soccer men players (21.3 ± 0.9yrs) performed two conditions: In one they consumed a nitrate-rich concentrated beetroot juice (250 mL/150 mg of NO3−) and in the other a placebo, 2h before a repeated sprint test. StO2 of the right vastus lateralis muscle was measured by near-infrared spectroscopy. A paired samples t-test was used to compute any differences in the subjects’ performance on the StO2 and on RSA test. The level of significance was set at p < 0.05. The supplementation of nitrates limited the decrease in muscle oxygenation during the six sprints of RSA test (p < 0.001) and also, there seemed to be a tendency for limited the decrement of performance on RSA test (t = -1.586, p = 0.157, η2 = 0.218). In conclusion, acute nitrate supplementation reduces the decrement of muscle oxygenation during exercise with repeated sprints and leads to a tendency of fatigue resistance during repeated sprints under controlled situations. Nitrate supplementation may have an ergogenic effect during exercise with repeated sprints via the higher muscle oxygenation.

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“…Consequently, due to its relatively low consumption, the chronic dose should be administered at least twice a day for 4-6 days [52][53][54][55][56], as reported in this review (consumption for 7-11 days and up to 9 weeks). On the other hand, acute intake must be administrated two to three hours before training or competition in a single dose of approximately 5 mmol to 6.5 mmol of [3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18]57,58].…”

Section: Discussionmentioning

confidence: 99%

Effectiveness of Nitrate Intake on Recovery from Exercise-Related Fatigue: A Systematic Review

Gamonales

Rojas-Valverde

Jiménez

et al. 2022

IJERPH

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Background: Recovery between efforts is critical to achieving optimal physical and sports performance. In this sense, many nutritional supplements that have been proven to improve recovery and physical and physiological performance are widely used. Supplements such as nitrates (NO3−), including organic foods such as beets, promote muscle recovery and relieve fatigue. This study aimed to comprehensively summarise the available literature on the effect of NO3− consumption on exercise-related fatigue and muscle damage. Methods: A systematic search was carried out based on the Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) using electronic databases (e.g., PubMed, Scopus, and Web of Science). From a total of 1634 studies identified, 15 studies were included in this review. Results: Based on the review, NO3− intake provokes physiological and metabolic responses that could potentially boost exercise-related recovery. NO3− could improve recovery indicators related to strength, pain, inflammation, and muscle damage. Conclusions: Despite the relative proven effectiveness of NO3− on recovery after aerobic and anaerobic efforts, based on the heterogeneity of the procedures (e.g., dosage, chronic vs. acute intake, participants’ characteristics, variables and outcomes), it could be premature to suggest its extended use in sports.

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Acute ingestion of beetroot juice does not improve short-duration repeated sprint running performance in male team sport athletes

Cited by 14 publications

References 45 publications

Effects of Dietary Nitrate Supplementation on Performance during Single and Repeated Bouts of Short-Duration High-Intensity Exercise: A Systematic Review and Meta-Analysis of Randomised Controlled Trials

Effects of Dietary Nitrate Supplementation on Performance during Single and Repeated Bouts of Short-Duration High-Intensity Exercise: A Systematic Review and Meta-Analysis of Randomised Controlled Trials

Influence of Beetroot Supplementation on Oxygen Muscle Saturation of Semi-Professional Soccer Players Following a Repeated Sprint Test

Effectiveness of Nitrate Intake on Recovery from Exercise-Related Fatigue: A Systematic Review

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