Effects of Dietary Nitrate Supplementation on Back Squat and Bench Press Performance: A Systematic Review and Meta-Analysis
Tan R, Pennell A, Karl ST, Cass JK, Go K, Clifford T, Bailey SJ, Perkins Storm C
Nutrients · 14 citas
Cómo se estudió
- Diseño
- Metaanálisis (indexado por PubMed)
- Estudiado en
- Personas
- Resultado principal
- Marcadores de salud y funcionamiento
- Consumo medido con
- No se indica
Quién lo pagó
- Financiación
- Financiación independiente
Según la declaración de financiación del texto completo.
Publicación
- Publicado
- 2023-05-27 · Nutrients · vol. 15 · número 11 · pág. 2493
- Editorial
- Multidisciplinary Digital Publishing Institute
- Citado
- 16 citas · más que el 80% de estudios similares · 1.6× el promedio de su campo
- Referencias
- 52 trabajos
- Acceso
- Acceso abierto (revista) · CC-BY
- Áreas de investigación
- Cardiovascular and exercise physiology · Exercise and Physiological Responses · Heart Rate Variability and Autonomic Control
- Palabras clave
- Bench press, Squat, Meta-analysis, Medicine, Strictly standardized mean difference, Time trial, Nitrate, Placebo, Physical therapy, Internal medicine, Regimen, Animal science, Resistance training, Blood pressure, Biology, Heart rate, Ecology
- MeSH
- muscle, skeletal, humans, nitrates, exercise therapy, dietary supplements, adult, male, muscle strength
8 autores
- Rachel Tan🇺🇸 · autor de correspondenciaPepperdine University
- Adam Pennell🇺🇸Pepperdine University
- Sean T. Karl🇺🇸Pepperdine University
- Jordan K. Cass🇺🇸Pepperdine University
- Katherine Go🇺🇸Pepperdine University
- Tom Clifford🇬🇧Loughborough University
- Stephen J. Bailey🇬🇧Loughborough University
- Cooker Perkins Storm🇺🇸Pepperdine University
Resumen
El texto original del estudio, en el idioma en que se publicó.
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, p = 0.002), mean power (SMD: 0.40, 95% CI: 0.127 to 0.678, p = 0.004), and mean velocity (SMD: 0.57, 95% CI: 0.07 to 1.061, p = 0.025) but had no effect on peak power (SMD: 0.204, 95% CI: -0.004 to 0.411, p = 0.054) or peak velocity (SMD: 0.00, 95% CI: -0.173 to 0.173, p = 1.000) when back squat and bench press were combined. Subgroup analyses revealed that back squats were more likely to be enhanced and that a dosing regimen may influence the efficacy of nitrate supplementation. Overall, nitrate supplementation had a small beneficial effect on some aspects of resistance exercise performance, but there were limited studies available and the variability was large. Additional studies that focus on upper and lower body resistance exercise and nitrate dosage are required to elucidate the efficacy of dietary nitrate supplementation on resistance exercise performance.
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