AP	Aerobic performance
AR	Active recovery
AR	Androgen receptor
AT	Anaerobic threshold
ATM	Ataxia telangiectasia mutated
ATP	Adenosine triphosphate
CAT	Catalase
CB1 and CB2	Cannabinoid receptors 1 and 2
CBF	Cerebral blood flow
CCO	Cytochrome c oxidase
cDNA	Complementary DNA
CINC-1	Cytokine-induced neutrophil chemoattractant-1
CK	Creatine kinase
CMJ	Counter movement jump
COD	Crossover design
CON	Concentric
COX-1/COX-2	Cyclooxygenases- 1 and -2
Cr	Creatine
CS	Citrate synthase
CSA	Larger cross-sectional area
CW	Continuous wave
CWI	Cold water immersion
DOMS	Delayed onset muscle soreness
ECC	Eccentric
GAPDH	Glyceraldehyde-3-phosphate dehydrogenase primers
GPCRs	G-protein-coupled receptors
GPx	Glutathione peroxidase
HFD	High-fat diet
HI	Neonatal hypoxia-ischemia
HPRT	Hypoxanthine-guanine phosphoribosyl transferase
HR	Heart rate
HRV	Heart rate variability
HSI	Hamstring strain injury
ICC	Intra-class correlation coefficient
IL-10	Interleukin 10
IL-1β	Interleukin-1β
IL-6	Interleukin-6
IMP	Impulse
IR	Infrared
iVO2MAX	Intensity at which VO2MAX was reached
KET test	Knee extension test
La−P	Peak lactate concentration after exercise
LDH	Lactate dehydrogenase
LEDs	Light-emitting diodes
LEDT	Light-emitting diode therapy
LFD	Low-fat diet
MAOD	Maximal accumulated oxygen deficit
MAODALT	Alternative maximal accumulated oxygen deficit
MAP-2	Microtubule-associated protein-2
MCP-1	Monocyte chemoattractant protein-1
MDA	Level of malondialdehyde
MHFAKE	Maximal hip flexion active knee extension
MMPs	Matrix metalloproteinases
MOP	Mean output power
MPO	Myeloperoxidase
MRF4	Myogenic regulatory factor (herculin)
MRS	Maximum running speed
mT	mili Testa (magnetic field)
mTOR	Mammalian (or mechanistic) target of rapamycin
MVC	Maximum voluntary contraction
myHC	Myosin heavy chain
NMES	Neuromuscular electrical stimulation
Nrf2	Nuclear factor erythroid 2-related factor 2
NSAIDs	Non-steroidal anti-inflammatory drugs
OA	Osteoarthritis
P200	Performance of 200 m
P53	Tumor protein p53
PBMT	Photobiomodulation therapy
PCR	Polymerase chain reaction
PF	Peak force
PGE2	Prostaglandin E2
PNS	Peripheral nerve stimulation
PPO	Peak power output
PSLR	Passive straight leg raise
PV	Peak velocity
R	Red
RCT	Double-blind randomized controlled trial
REREX	Exhaustion respiratory exchange ratio
RCTs	Placebo-controlled randomized trials
RPE	Rating of perceived exertion
RPEex	Exhaustion perceived exertion
SIT	Sprint interval training
SJ	Squat jump
SLR	Straight leg raise
sMF	Static magnetic field
SmO2	Muscle oxygen saturation
SOD	Superoxide dismutase
SSC	Stretch-shortening cycle
TAC	Total antioxidant capacity
TBARS	2-thiobarbituric acid
TNF-α	Tumor necrosis factor-alpha
TRF1/TRF2	Telomeric repeat binding factors
VCO2	Volume carbon dioxide
VO2	O2 uptake
VO2EX	Exhaustion oxygen consumption
VO2MAX	Maximal oxygen uptake
YYIR1	YoYo intermittent recovery level 1
1-RM	Load in 1-repetition maximum test
30 CJ	30-s crossbar jump test
↑	Increase
↓	Decrease