UFC	Ultimate Fighting Championship
1RM	one-repetition maximum
RSI	reactive strength index
AU	arbitrary units
SJ	squat jump
CMJ	countermovement jump
FMS	functional movement screen
AUC	area under the curve
RPE	rating perceived exertion
MMA	Mixed Martial Arts
KO	knockout
TKO	technical knockout
PRISMA	Preferred Reporting Items for Systematic Reviews and Meta-Analyses
PECO	participants, exposure, comparators and outcomes
mTBI	mild traumatic brain injury
RWL	rapid weight loss
BM	body mass
WG	weight regain