ACAA2	3-ketoacyl-CoA thiolase
ACADM	medium-chain specific acyl-CoA dehydrogenase
ACADVL	very long-chain specific acyl-CoA dehydrogenase
ACAT1	acetyl-CoA acetyltransferase
ACO2	aconitate hydratase
ACOT1	acyl-coenzyme A thioesterase 1
ACSL1	long-chain-fatty-acid--CoA ligase 1
ACTA1	actin, alpha skeletal muscle
ACTN2	alpha-actinin-2
ADSSL1	adenylosuccinate synthetase isozyme 1
AGL	glycogen debranching enzyme
AK1	adenylate kinase isoenzyme 1
ALDH1A1	retinal dehydrogenase 1
ALDH4A1	delta-1-pyrroline-5-carboxylate dehydrogenase
ALDOA	fructose-bisphosphate aldolase A
ANKRD2	ankyrin repeat domain-containing protein 2
ANXA2	annexin A2
APOA1	apolipoprotein A-I
APOA2	apolipoprotein A-II
ARED	advanced resistive exercise device (exercise device, weight lifts)
ATP2A1	sarco(endo)plasmatic reticulum Ca(2+)-ATPase 1 (SERCA 1) pump
ATP5A1	ATP synthase subunit alpha
ATP5B	ATP synthase subunit beta
ATP5C1	ATP synthase subunit gamma
ATP5D	ATP synthase subunit delta
ATP5H	ATP synthase subunit d
ATP5J	ATP synthase-coupling factor 6
ATP5J2	ATP synthase subunit f
BCL2L13	Bcl-2-like protein 13
BMI	body mass index
CA3	carbonic anhydrase 3
CASQ1/CASQ2	calsequestrin-1/2
CEVIS	cycle ergometer (exercise device, -> heart rate blood circulation)
CFL2	cofilin-2
CISD1	CDGSH iron-sulfur domain-containing protein
CKB	creatine kinase B-type
CKM	creatine kinase M-type
CKMT2	creatine kinase S-type
CM	countermeasure
CMBL	carboxymethylene butenolidase homolog
COL6A1	collagen alpha-1(VI) chain
COL6A3	collagen alpha-3(VI) chain
COQ9	ubiquinone biosynthesis protein COQ9, mitochondrial
COX4I1	cytochrome c oxidase subunit 4 isoform
COX5B	cytochrome c oxidase subunit 5B
COX6B1	cytochrome c oxidase subunit 6B1
CS	citrate synthase
CSA	cross sectional area (myofiber size)
CYB5R1	NADH-cytochrome b5 reductase 1
CYB5R3	NADH-cytochrome b5 reductase 3
CYCS	cytochrome C
DECR1	2,4-dienoyl-CoA reductase
DLD	dihydrolipoyl dehydrogenase
DLST	dihydrolipoyllysine-residue succinyltransferase component of 2-oxoglutarate dehydrogenase complex
DPYSL3	dihydropyrimidinase-related protein 3
ECH1	delta(3,5)-Delta(2,4)-dienoyl-CoA isomerase
ECHS1	enoyl-CoA hydratase
ECI2	enoyl-CoA delta isomerase 2
ECM	extracellular matrix
EDL	extensor digitorum longus (plantarflexor muscle)
EHD2	EH domain-containing protein 2
EIF5A	eukaryotic translation initiation factor 5A-1
ENO1	alpha-enolase
EPHX1	epoxide hydrolase 1
ER	endoplasmic reticulum (muscle fiber organelle)
ETFA/B	electron transfer flavoprotein subunit alpha/beta
ETFDH	electron transfer flavoprotein-ubiquinone oxidoreductase
FABP3	fatty-acid binding protein
FBN1	fibrillin 1
FD	flight days
FGA/FGB	fibrinogen alpha/beta chain
FH	fumarate hydratase
FHL1	four and a half LIM domains protein 1
FLNA	filamin-A
FTH1	ferritin heavy chain
GATD3	glutamine amidotransferase-like class 1 domain-containing protein 3
GC	vitamin D-binding protein
GDI2	Rab GDP dissociation inhibitor beta
GLO1	lactoylglutathione lyase
GOT1/GOT2	aspartate aminotransferase, cytoplasmic/mitochondrial
GPD1	glycerol-3-phosphate dehydrogenase [NAD(+)], cytoplasmic
GPD1L	glycerol-3-phosphate dehydrogenase 1-like protein
GPT	alanine aminotransferase 1
GSTO1	Glutathione S-transferase omega-1
GYS1	glycogen [starch] synthase
H&E	hematoxylin-eosin (histology stain)
HADH	hydroxyacyl-coenzyme A dehydrogenase
HADHA	trifunctional enzyme subunit alpha
HHATL	protein-cysteine N-palmitoyltransferase HHAT-like protein
HP	haptoglobin
HSDL2	hydroxysteroid dehydrogenase-like protein 2
HSPB6	heat shock protein beta-6
HSPD1	60 kDa heat shock protein
IDH2	isocitrate dehydrogenase [NADP]
ILK	integrin-linked kinase
IMMT	MICOS complex subunit MIC60
ISS	International Space Station
IPA	ingenuity pathway analysis
LC–ESI–MS/MS	liquid chromatography electrospray/tandem mass spectrometry
µG/0G	microgravity [µG] means micro-fractional and/or zero net gravitational force [0G]
LDHA	L-lactate dehydrogenase A chain
LDHB	L-lactate dehydrogenase B chain
LDM	long-term mission
LMCD1	LIM and cysteine-rich domains protein 1
LUM	lumican
MAP4	microtubule-associated protein 4
MB	myoglobin
MDH1	malate dehydrogenase, cytoplasmic
MMP2	matrix metalloproteinase 2
MSN	moesin
MT-CO2	cytochrome c oxidase subunit 2
MYBPC1	myosin-binding protein C (slow type)
MYH2	myosin-2
MYH7	myosin-7
MYL1	myosin light chain 1/3
MYL2	myosin regulatory light chain 2 (slow-type myofibers)
MYL3	myosin light chain-3
MYL6B	myosin light chain-6B
MYLPF	myosin regulatory light chain 2
MYOM2	myomesin-2
NDUFA5	NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 5
NDUFB10	NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 10
NDUFB8	NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 8
NDUFS1	NADH-ubiquinone oxidoreductase 75 kDa subunit
NDUFS2	NADH dehydrogenase [ubiquinone] iron-sulfur protein 2
NDUFS5	NADH dehydrogenase [ubiquinone] iron-sulfur protein 5
NDUFS8	NADH dehydrogenase [ubiquinone] iron-sulfur protein 8
NEB	nebulin
NME2	nucleoside diphosphate kinase B
NNT	NAD(P) transhydrogenase
OGDH	2-oxoglutarate dehydrogenase
PDHA1	pyruvate dehydrogenase E1 component subunit alpha
PDLIM3	PDZ LIM domain protein 3
PFKM	ATP-dependent 6-phosphofructokinase
PHB	prohibitin
PKM	pyruvate kinase
PLEC	plectin
PPIA	peptidyl-prolyl cis-trans isomerase A
PRDX1	peroxiredoxin-1
PRDX3	thioredoxin-dependent peroxide reductase
PRE	preflight
PRKACA	cAMP-dependent protein kinase catalytic subunit alpha
PSMA7	proteasome subunit alpha type-7
PTGES2	prostaglandin E synthase 2
R+0	day of return to Earth
RHOA	Rho A GTPase
RTN4	reticulon-4
RYR1	ryanodine receptor 1
S100A1	protein S100-A1
SDHA	succinate dehydrogenase [ubiquinone] flavoprotein subunit
SDM	short-term mission
SERPINC1	antithrombin-III
SH3BGR	SH3 domain-binding glutamic acid-rich protein
SLC25A11	Mitochondrial 2-oxoglutarate/malate carrier protein
SLC25A12	Calcium-binding mitochondrial carrier protein Aralar1
SLC25A4	ADP/ATP translocase 1
SLC4A1	band 3 anion transport protein
SOD2	superoxid dismutase [Mn] 2
SOL	soleus muscle (deep calf postural muscle)
SRL	sarcalumenin
SUCLA2	succinyl-CoA ligase [ADP-forming] subunit beta
SYNM	synemin
SYPL2	synaptophysin-like protein 2
T2	treadmill 2 (exercise device, endurance)
TCA	tricarboxylic acid
TF	serotransferrin
TNNI1	troponin I, slow skeletal muscle
TPI1	triosephosphate isomerase
TPM2	tropomyosin beta chain
TRIM72	tripartite motif-containing protein 72
TTN	titin
TUBB	tubulin beta chain
TUBB4B	tubulin beta-4B chain
TUFM	elongation factor Tu
UGP2	UTP--glucose-1-phosphate uridylyltransferase
UQCRC1/UQCRC2	cytochrome b-c1 complex subunit 1/2
UQCRQ	cytochrome b-c1 complex subunit 8
VCL	vinculin
VDAC1/2/3	voltage-dependent anion-selective channel protein 1/2/3
VIM	vimentin
w/o	without
YBX3	Y-box-binding protein 3
YWHAZ	14-3-3 protein zeta/delta