Muscle, SkeletalMuscle ContractionMuscle Fibers, SkeletalMusclesMuscle ProteinsIsometric ContractionMuscle FatigueTroponin CTroponinMuscle, SmoothMyosinsRabbitsCalciumTropomyosinMuscle DevelopmentElectric StimulationMitochondria, MuscleMuscle Fibers, Fast-TwitchMuscle Fibers, Slow-TwitchMuscle, Smooth, VascularRegional Blood FlowDietary SupplementsExerciseSatellite Cells, Skeletal MuscleGlycogenMuscular AtrophyMuscular DiseasesQuadriceps MuscleMuscle DenervationMyofibrilsMuscle CellsMuscle RelaxationPhysical ExertionInsulinPhysical EnduranceTime FactorsMyosin Heavy ChainsMyoblastsPhosphocreatineElectromyographyRNA, MessengerGlucoseOxygen ConsumptionHindlimbLegMyocytes, Smooth MuscleCells, CulturedMuscle, StriatedRats, WistarMuscle SpindlesMyoblasts, SkeletalCitrate (si)-SynthaseMuscle WeaknessRats, Sprague-DawleySarcoplasmic ReticulumLactic AcidAdenosine TriphosphateSarcolemmaPhosphorylationMyocardiumEnergy MetabolismGlucose Transporter Type 4Oculomotor MusclesMyocardial ContractionMyostatinSignal TransductionKineticsActinsGene Expression RegulationNeck MusclesSarcomeresMyoD ProteinPapillary MusclesUterine ContractionRespiratory MusclesCreatine KinaseAgingAMP-Activated Protein KinasesDiaphragmDose-Response Relationship, DrugRegenerationAbdominal MusclesModels, BiologicalMolecular Sequence DataMice, Inbred C57BLPhysical Conditioning, AnimalAdaptation, PhysiologicalMuscular Dystrophy, AnimalInsulin ResistanceThighVasoconstrictionMotor NeuronsPsoas MusclesBiopsyBiomechanical PhenomenaRyanodine Receptor Calcium Release ChannelMice, Inbred mdxDystrophinRestCaffeine