Dietary nitrate ingested with and without pomegranate supplementation does not improve resistance exercise performance

This study tested the hypothesis that co-ingesting nitrate (NO3−)-rich beetroot juice (BR) and pomegranate powder (POM) would enhance neuromuscular performance during vertical countermovement jumps, explosive kneeling countermovement push-ups, and back squats compared to BR ingestion alone. Fifteen...

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Main Authors: Rachel Tan, Katherine M. Price, Lauren E. Wideen, Isabella G. Lincoln, Sean T. Karl, Jacob P. Seals, Keonabelle K. Paniagua, Dylan W. Hagen, Isaac Tchaprazian, Stephen J. Bailey, Adam Pennell
Format: Article
Language:English
Published: Frontiers Media S.A. 2023-07-01
Series:Frontiers in Nutrition
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fnut.2023.1217192/full
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author Rachel Tan
Katherine M. Price
Lauren E. Wideen
Isabella G. Lincoln
Sean T. Karl
Jacob P. Seals
Keonabelle K. Paniagua
Dylan W. Hagen
Isaac Tchaprazian
Stephen J. Bailey
Adam Pennell
author_facet Rachel Tan
Katherine M. Price
Lauren E. Wideen
Isabella G. Lincoln
Sean T. Karl
Jacob P. Seals
Keonabelle K. Paniagua
Dylan W. Hagen
Isaac Tchaprazian
Stephen J. Bailey
Adam Pennell
author_sort Rachel Tan
collection DOAJ
description This study tested the hypothesis that co-ingesting nitrate (NO3−)-rich beetroot juice (BR) and pomegranate powder (POM) would enhance neuromuscular performance during vertical countermovement jumps, explosive kneeling countermovement push-ups, and back squats compared to BR ingestion alone. Fifteen recreationally-active males were assigned in a double-blind, randomized, crossover design, to supplement in 3 conditions: (1) NO3−-depleted beetroot juice (PL; 0.10 mmol NO3−) with two empty gelatin capsules; (2) NO3−-rich beetroot juice (BR; 11.8 mmol NO3−) with two empty gelatin capsules, and (3) BR with 1,000 mg of POM powder in two capsules (BR + POM). Participants completed 5 countermovement jumps and 5 kneeling countermovement push-ups interspersed by 1  min of recovery. Subsequently, participants performed 2 sets of 2 × 70% one-repetition maximum back squats, interspersed by 2  min of recovery. Plasma [NO3−] and nitrite ([NO2−]) were elevated following BR and BR + POM compared with PL and POM (p < 0.001) with no differences between BR and BR + POM (p > 0.05) or PL and POM (p > 0.05). Peak power during countermovement jumps increased by 3% following BR compared to BR + POM (88.50 ± 11.46 vs. 85.80 ± 10.14 W/Kg0.67, p = 0.009) but not PL (88.50 ± 11.46 vs. 85.58 ± 10.05 W/Kg0.67, p = 0.07). Neuromuscular performance was not different between conditions during explosive kneeling push-ups and back squats (p > 0.05). These data provide insight into the efficacy of NO3− to modulate explosive resistance exercise performance and indicate that supplementing with BR alone or combined with POM has limited ergogenic potential on resistance exercise. Furthermore, caution is required when combining BR with POM, as this could compromise aspects of resistance exercise performance, at least when compared to BR ingested independently.
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spelling doaj.art-17181a3b61564159838c149fc4a789ac2023-07-06T15:06:48ZengFrontiers Media S.A.Frontiers in Nutrition2296-861X2023-07-011010.3389/fnut.2023.12171921217192Dietary nitrate ingested with and without pomegranate supplementation does not improve resistance exercise performanceRachel Tan0Katherine M. Price1Lauren E. Wideen2Isabella G. Lincoln3Sean T. Karl4Jacob P. Seals5Keonabelle K. Paniagua6Dylan W. Hagen7Isaac Tchaprazian8Stephen J. Bailey9Adam Pennell10Department of Sports Medicine, Pepperdine University, Malibu, CA, United StatesDepartment of Sports Medicine, Pepperdine University, Malibu, CA, United StatesDepartment of Sports Medicine, Pepperdine University, Malibu, CA, United StatesDepartment of Sports Medicine, Pepperdine University, Malibu, CA, United StatesDepartment of Sports Medicine, Pepperdine University, Malibu, CA, United StatesDepartment of Sports Medicine, Pepperdine University, Malibu, CA, United StatesDepartment of Sports Medicine, Pepperdine University, Malibu, CA, United StatesDepartment of Sports Medicine, Pepperdine University, Malibu, CA, United StatesDepartment of Sports Medicine, Pepperdine University, Malibu, CA, United StatesSchool of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, United KingdomDepartment of Sports Medicine, Pepperdine University, Malibu, CA, United StatesThis study tested the hypothesis that co-ingesting nitrate (NO3−)-rich beetroot juice (BR) and pomegranate powder (POM) would enhance neuromuscular performance during vertical countermovement jumps, explosive kneeling countermovement push-ups, and back squats compared to BR ingestion alone. Fifteen recreationally-active males were assigned in a double-blind, randomized, crossover design, to supplement in 3 conditions: (1) NO3−-depleted beetroot juice (PL; 0.10 mmol NO3−) with two empty gelatin capsules; (2) NO3−-rich beetroot juice (BR; 11.8 mmol NO3−) with two empty gelatin capsules, and (3) BR with 1,000 mg of POM powder in two capsules (BR + POM). Participants completed 5 countermovement jumps and 5 kneeling countermovement push-ups interspersed by 1  min of recovery. Subsequently, participants performed 2 sets of 2 × 70% one-repetition maximum back squats, interspersed by 2  min of recovery. Plasma [NO3−] and nitrite ([NO2−]) were elevated following BR and BR + POM compared with PL and POM (p < 0.001) with no differences between BR and BR + POM (p > 0.05) or PL and POM (p > 0.05). Peak power during countermovement jumps increased by 3% following BR compared to BR + POM (88.50 ± 11.46 vs. 85.80 ± 10.14 W/Kg0.67, p = 0.009) but not PL (88.50 ± 11.46 vs. 85.58 ± 10.05 W/Kg0.67, p = 0.07). Neuromuscular performance was not different between conditions during explosive kneeling push-ups and back squats (p > 0.05). These data provide insight into the efficacy of NO3− to modulate explosive resistance exercise performance and indicate that supplementing with BR alone or combined with POM has limited ergogenic potential on resistance exercise. Furthermore, caution is required when combining BR with POM, as this could compromise aspects of resistance exercise performance, at least when compared to BR ingested independently.https://www.frontiersin.org/articles/10.3389/fnut.2023.1217192/fullnitric oxidepowerstrength trainingbeetrootneuromuscularmuscle
spellingShingle Rachel Tan
Katherine M. Price
Lauren E. Wideen
Isabella G. Lincoln
Sean T. Karl
Jacob P. Seals
Keonabelle K. Paniagua
Dylan W. Hagen
Isaac Tchaprazian
Stephen J. Bailey
Adam Pennell
Dietary nitrate ingested with and without pomegranate supplementation does not improve resistance exercise performance
Frontiers in Nutrition
nitric oxide
power
strength training
beetroot
neuromuscular
muscle
title Dietary nitrate ingested with and without pomegranate supplementation does not improve resistance exercise performance
title_full Dietary nitrate ingested with and without pomegranate supplementation does not improve resistance exercise performance
title_fullStr Dietary nitrate ingested with and without pomegranate supplementation does not improve resistance exercise performance
title_full_unstemmed Dietary nitrate ingested with and without pomegranate supplementation does not improve resistance exercise performance
title_short Dietary nitrate ingested with and without pomegranate supplementation does not improve resistance exercise performance
title_sort dietary nitrate ingested with and without pomegranate supplementation does not improve resistance exercise performance
topic nitric oxide
power
strength training
beetroot
neuromuscular
muscle
url https://www.frontiersin.org/articles/10.3389/fnut.2023.1217192/full
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