Acute inorganic nitrate ingestion does not impact oral microbial composition, cognitive function, or high-intensity exercise performance in female team-sport athletes

被引：3

作者：

Tan, Rachel ^{[1
]}

Merrill, Courtney ^{[1
]}

Riley, Chandler F. ^{[1
]}

Hammer, Maya A. ^{[1
]}

Kenney, Ryan T. ^{[1
]}

Riley, Alyssa A. ^{[1
]}

Li, Jeffrey ^{[1
]}

Zink, Alexandra C. ^{[1
]}

Karl, Sean T. ^{[1
]}

Price, Katherine M. ^{[1
]}

Sharabidze, Luka K. ^{[1
]}

Rowland, Samantha N. ^{[2
]}

Bailey, Stephen J. ^{[2
]}

Stiemsma, Leah T. ^{[1
]}

Pennell, Adam ^{[1
]}

机构：

[1] Pepperdine Univ, Nat Sci Div, Malibu, CA 90263 USA

[2] Loughborough Univ, Sch Sport Exercise & Hlth Sci, Loughborough, England

来源：

EUROPEAN JOURNAL OF APPLIED PHYSIOLOGY | 2024年 / 124卷 / 12期

关键词：

Nitric oxide; Beetroot; Exercise; Strength; 16S rRNA sequencing; Females; INTERMITTENT RECOVERY TEST; DIETARY NITRATE; NITRIC-OXIDE; SKELETAL-MUSCLE; BEETROOT JUICE; IMPROVES SPRINT; SOCCER GAME; SUPPLEMENTATION; TIME; FORCE;

D O I：

10.1007/s00421-024-05552-w

中图分类号：

Q4 [生理学];

学科分类号：

071003 ;

摘要：

The purpose of this study was to investigate the effects of acute nitrate (NO3-)-rich beetroot juice ingestion on explosive and high-intensity exercise performance, oral microbiota composition, and cognitive flexibility (i.e., function), before and after maximal intermittent running exercise. Fifteen women team-sport athletes were assigned in a randomized, double-blind, crossover design to consume concentrated NO3--depleted beetroot juice (PL; 0.1 mmol NO3-) and NO3--rich beetroot juice (BR; 12.0 mmol NO3-) 2.5 h prior to performing a battery of exercise performance tasks and cognitive testing before and after the Yo-Yo intermittent recovery level 1 (YYIR1) running test. Resting plasma [NO3-] and plasma nitrite ([NO2-]) were elevated following BR (P < 0.001). BR did not impact global composition or relative abundance of taxa in the oral microbiome (P > 0.05) or cognitive flexibility before or after exercise (P > 0.05). There was no significant difference in performance during 20-m (PRE, PL: 4.38 +/- 0.27 vs. BR: 4.38 +/- 0.32 s; POST, PL: 4.45 +/- 0.29 vs. BR: 4.43 +/- 0.35 s) and 10-m sprints (PRE, PL 2.78 +/- 0.15 vs. BR 2.79 +/- 0.18 s; POST, PL: 2.82 +/- 0.16 vs. BR: 2.81 +/- 0.19 s), isokinetic handgrip dynamometry, medicine ball throw, horizontal countermovement jump, or YYIR1 (PL: 355 +/- 163 m vs. BR: 368 +/- 184 m) between BR and PL (P > 0.05). These findings indicate that acute dietary NO3- may not influence the oral microbiome, explosive and high-intensity exercise performance, or cognitive function in women team-sport athletes.

引用

页码：3511 / 3525

页数：15

共 95 条

[21] Acute beetroot juice supplementation did not enhance intermittent running performance in trained rugby players [J].