PhosphocreatineGlycogenGlycogen SynthaseMagnetic Resonance SpectroscopyCreatineLiver GlycogenGlycogen Synthase Kinase 3Glycogen PhosphorylaseEnergy MetabolismAdenosine TriphosphatePhosphatesMuscle, SkeletalCreatine KinasePhosphorylasesPhosphorus IsotopesPhosphorusLactatesGlycogen Synthase KinasesLactic AcidMusclesAdenosine DiphosphateGlycolysisCreatine Kinase, BB FormCreatine Kinase, MM FormOxygen ConsumptionGlucoseGlycogen Storage DiseaseHydrogen-Ion ConcentrationCreatine Kinase, Mitochondrial FormOxidative PhosphorylationMitochondria, MuscleMyocardiumExerciseMuscle ContractionGuanidinoacetate N-MethyltransferaseAdenine NucleotidesGlycogen Debranching Enzyme SystemGlucose-6-PhosphateAdenosine MonophosphateGlycogen Storage Disease Type IKineticsBrainAspartic AcidRats, Inbred StrainsMuscle FatiguePhysical ExertionHypoxia, BrainPerfusionInosine MonophosphateInsulinDichloroacetic AcidGlucosephosphatesGlycogen Storage Disease Type IIPhosphorylase bTime FactorsPhosphorylase aGlycogen Phosphorylase, Liver FormPhysical EnduranceGlycogen Phosphorylase, Muscle FormUridine Diphosphate GlucoseAcetylcarnitinePhosphorus CompoundsBrain ChemistryErgometryRats, WistarOxygenLiverPhysical Conditioning, HumanPhosphorylationCholinePyruvic AcidPyruvatesBlood GlucosePyruvate Dehydrogenase ComplexGlycogen Storage Disease Type IIIIodoacetic AcidMyocardial ContractionHeartAcidosisRestRabbitsAdenylate KinaseGlycerylphosphorylcholineLegIsometric ContractionIodoacetatesPerhexiline1,4-alpha-Glucan Branching EnzymeMitochondria, HeartProtonsPropionatesAnoxiaDinitrofluorobenzeneMagnetic Resonance ImagingGlycogen Storage Disease Type IVBicyclingDeoxyglucoseRats, Sprague-DawleyEnzyme ActivationQuadriceps Muscle