Evidence map›Paper›PMID 37299456›Full record

SynthesisNutrients2023

Effects of Dietary Nitrate Supplementation on Back Squat and Bench Press Performance: A Systematic Review and Meta-Analysis.

Rachel Tan, Adam Pennell, Sean T Karl, Jordan K Cass, Katherine Go, Tom Clifford, Stephen J Bailey, Cooker Perkins Storm

Registry-linked trialAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in Nutrients, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT07106489 (Effect of Beetroot Extract Supplementation on the Athletic Performance of Trained Rugby Athletes), which is not on this map. Cited by 16 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 5 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

NCT07106489 nacompletednot on this mapstarted 2025, after this paper: background citation

Effect of Beetroot Extract Supplementation on the Athletic Performance of Trained Rugby Athletes

TypeinterventionalSponsorUniversidad Nacional de ColombiaRan2025 to 2025Enrolled10ConditionsAthletic PerformanceArmsbeetroot juice - Placebo, 40 meters sprint, Fitness test by bronco test, Maximal strength, Borg scale
3 · Its place in the literature

Who cites it

16 citing papers in PubMed, 5 syntheses or guidelines pooled it.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors.

Rachel TanDepartment of Sports Medicine, Pepperdine University, Malibu, CA 90263, USA.ORCID 0000-0001-8669-168X
Adam PennellDepartment of Sports Medicine, Pepperdine University, Malibu, CA 90263, USA.ORCID 0000-0003-0876-4972
Sean T KarlDepartment of Sports Medicine, Pepperdine University, Malibu, CA 90263, USA.ORCID 0000-0003-2542-3168
Jordan K CassDepartment of Sports Medicine, Pepperdine University, Malibu, CA 90263, USA.ORCID 0009-0004-4665-7566
Katherine GoDepartment of Sports Medicine, Pepperdine University, Malibu, CA 90263, USA.
Tom CliffordSchool of Sport, Exercise, and Health Sciences, Loughborough University, Loughborough LE11 3TU, UK.
Stephen J BaileySchool of Sport, Exercise, and Health Sciences, Loughborough University, Loughborough LE11 3TU, UK.ORCID 0000-0003-0923-6362
Cooker Perkins StormDepartment of Sports Medicine, Pepperdine University, Malibu, CA 90263, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

This systematic review and meta-analysis investigated the influence of dietary nitrate supplementation on resistance exercise performance according to the PRISMA guidelines. Searches were conducted on MEDLINE, PubMed, ScienceDirect, Scopus and SPORTDiscus databases up to April 2023. Inclusion criteria were adult resistance-trained males who supplemented with a nitrate-rich supplement and nitrate-deficient placebo to assess repetitions-to-failure (RTF), peak power, mean power, peak velocity, and/or mean velocity during back squat and bench press exercise. A random effects model was performed on six studies and showed that nitrate supplementation improved RTF (standardized mean difference [SMD]: 0.43, 95% confidence intervals [95% CI]: 0.156 to 0.699,

Indexed as

Muscle StrengthNitratesAdultDietary SupplementsExercise TherapyHumansMaleMuscle, SkeletalNitratesbeetrootergogenic aidnitric oxideresistance exerciseskeletal muscleweightlifting

Identifiers

PMID37299456
PMCPMC10255616

What Socratic holds

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LicenceCC BY
Read underepoch 390

Registered trials

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.