1RM	One-repetition maximum
BFM	Body fat mass
BP	Bench press
BR	Bent-over row
BW	Body weight
COL	Hydrolyzed collagen peptide supplementation group
CP	collagen peptide
CSA	Cross-sectional area
DL	Deadlift
DOMS	Delayed onset of muscle soreness
ECM	Extracellular matrix
fCSA	Muscle fiber cross-sectional area
FFM	Fat-free mass
KE	Knee extension
LC	Leg circumference
Leg-Ex	Leg extension
MViC	Maximal voluntary isometric contraction
PLA	Placebo-controlled supplementation group
RDA	Recommended dietary allowance
RET	Resistance exercise training
RPE	Rate of perceived exertion
SQ	Squat