BRJ	Beetroot juice
CI	Confidence interval
CMJ	Countermovement jump
CODS	Change-of-direction speed
CRT	Choice reaction time
FI	Fatigue index
FT	Fastest time
HR	Heart rate
NO	Nitric oxide
NO2−	Nitrite
NO3−	Nitrate
NOx	Total nitrate and nitrite
OSF	Open Science Framework
PEDro	Physiotherapy Evidence Database
PICOS	Population, Intervention, Comparator, Outcomes, and Study design
PL	Placebo
PRISMA	Preferred Reporting Items for Systematic Reviews and Meta-Analyses
RPE	Rating of perceived exertion
RSA	Repeated-sprint ability
RST	Repeated-sprint test
SD	Standard deviation
SMD	Standardized mean difference
SRT	Simple reaction time
ST	Slowest time
TT	Total time
WAnT	Wingate anaerobic test
Wmean	Mean power output
Wpeak	Peak power output
Wmin	Minimum power output
YYIR1	Yo-Yo Intermittent Recovery Test Level 1