Effects of Dietary Nitrate Supplementation on Performance and Muscle Oxygenation during Resistance Exercise in Men
Tan R, Pennell A, Price KM, Karl ST, Seekamp-Hicks NG, Paniagua KK, Weiderman GD, Powell JP, Sharabidze LK, Lincoln IG, Kim JM, Espinoza MF, Hammer MA, Goulding RP, Bailey SJ
Nutrients · 17 citations
How it was studied
- Design
- Randomized controlled trial (indexed by PubMed)
- Studied in
- People
- Main outcome
- Health markers and function
- Intake measured by
- Not stated
Who paid for it
- Funding
- Independent funding
Based on full-text disclosure statement.
Publication
- Published
- 2022-09-08 · Nutrients · vol. 14 · issue 18 · p. 3703
- Publisher
- Multidisciplinary Digital Publishing Institute
- Cited
- 18 citations · more than 94% of similar papers · 4.3× the field average
- Impact
- Top 10% most cited in its field
- References
- 85 works
- Access
- Open access (journal) · CC-BY
- Research areas
- Cardiovascular and exercise physiology · Exercise and Physiological Responses · Heart Rate Variability and Autonomic Control
- Keywords
- Resistance training, Dietary Nitrate, Oxygenation, Medicine, Internal medicine, Endocrinology, Nitrate, Food science, Biology, Nitrite, Ecology
- MeSH
- humans, beta vulgaris, nitrates, nitrites, nitrogen oxides, nitrogen dioxide, cross-over studies, double-blind method, dietary supplements, male, quadriceps muscle, resistance training
15 authors
From US, NL, GB
- Rachel Tan · correspondingPepperdine University
- Adam PennellPepperdine University
- Katherine M. PricePepperdine University
- Sean T. KarlPepperdine University
- Noelle G. Seekamp-HicksPepperdine University
- Keonabelle K. PaniaguaPepperdine University
Abstract
The purpose of the current study was to assess the effects of acute and short-term nitrate (NO3−)-rich beetroot juice (BR) supplementation on performance outcomes and muscle oxygenation during bench press and back squat exercise. Fourteen recreationally active males were assigned in a randomized, double-blind, crossover design to supplement for 4 days in two conditions: (1) NO3−-depleted beetroot juice (PL; 0.10 mmol NO3− per day) and (2) BR (11.8 mmol NO3− per day). On days 1 and 4 of the supplementation periods, participants completed 2 sets of 2 × 70%1RM interspersed by 2 min of recovery, followed by one set of repetitions-to-failure (RTF) at 60%1RM for the determination of muscular power, velocity, and endurance. Quadriceps and pectoralis major tissue saturation index (TSI) were measured throughout exercise. Plasma [NO3−] and nitrite ([NO2−]) were higher after 1 and 4 days of supplementation with BR compared to PL (p 0.05). The number of RTF in bench press was 5% greater after acute BR ingestion compared to PL (PL: 23 ± 4 vs. BR: 24 ± 5, p 0.05). These data improve understanding on the ergogenic potential of BR supplementation during resistance exercise.
Abstract via Europe PMC. Copyright remains with the authors or publisher (CC BY).
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