ABT	activity-based therapies
AR	androgen receptor
ARE	androgen response element
BDNF	brain-derived neurotrophic factor
BWSTT	bodyweight-supported treadmill training
CNS	central nervous system
CSA	cross-sectional area
DHT	dihydrotestosterone
E2	estradiol
EPSP	excitatory postsynaptic potential
ER	estrogen receptor
ERE	estrogen response element
fCSA	fiber cross-sectional area
FOXO	forkhead box O
GPCR	G-protein-coupled receptor
GSK3β	glycogen synthase kinase 3β
IGF-1	insulin-like growth factor
IGF-1R	insulin-like growth factor receptor
IGFBP	insulin-like growth factor binding protein
IRS1	insulin receptor substrate-1
LABC	levator ani/bulbocavernosus
MAFbx	muscle atrophy F-box or atrogin-1
MGF	mechano growth factor
MHC	myosin heavy chain
mTOR	mammalian target of rapamycin
MuRF1	muscle ring finger-1
NT-3	neurotrophin-3
ORX	orchiectomy
PGC-1α	peroxisome proliferator-activated receptor gamma co-activator-1α
PGC-1β	peroxisome proliferator-activated receptor gamma co-activator-1β
PI3K	phosphatidyl inositol-3 kinase
SCI	spinal cord injury
SHBG	sex-hormone binding globulin
SNB	spinal nucleus of the bulbocavernosus
T	testosterone
TCF-4	T-cell factor-4
TE	testosterone enanthate
TrkB	tyrosine receptor kinase B
TrkC	tyrosine receptor kinase C
TRT	testosterone replacement therapy