Muscle ContractionMuscle, SkeletalMitochondriaMuscle Fibers, SkeletalIsometric ContractionMusclesTroponin CTroponinMuscle ProteinsMyosinsMuscle FatigueCalciumTropomyosinRabbitsElectric StimulationMuscle, SmoothMitochondria, LiverMitochondria, MuscleRegional Blood FlowMuscle, Smooth, VascularMuscle DevelopmentMitochondria, HeartSciatic NerveMuscle Fibers, Fast-TwitchMuscle Fibers, Slow-TwitchMuscle RelaxationPeripheral NervesMyocardial ContractionElectromyographyUterine ContractionMyofibrilsMuscle DenervationOxygen ConsumptionRats, Sprague-DawleyRats, WistarMitochondrial ProteinsAdenosine TriphosphateSatellite Cells, Skeletal MuscleNerve FibersHindlimbMuscular AtrophyOptic NerveTime FactorsKineticsMuscular DiseasesGuinea PigsCells, CulturedMuscle SpindlesMotor NeuronsMyocardiumOxidative PhosphorylationModels, BiologicalMolecular Sequence DataMyocytes, Smooth MuscleMuscle, StriatedNerve RegenerationMuscle CellsMembrane PotentialsQuadriceps MuscleActinsGlycogenSarcomeresDose-Response Relationship, DrugVasoconstrictionTracheaSarcoplasmic ReticulumRNA, MessengerDiaphragmEnergy MetabolismTibial NerveSignal TransductionPhysical ExertionMicroscopy, ElectronNeuromuscular JunctionPotassium ChlorideMuscle WeaknessPhosphorylationMyoblastsNerve EndingsMyosin Heavy ChainsAmino Acid SequenceOculomotor MusclesNeck MusclesAcetylcholineGlucoseInsulinBiomechanical PhenomenaMyosin Light ChainsPapillary MusclesSarcolemmaNerve BlockIntracellular MembranesMitochondrial SwellingMice, Inbred C57BLIsotonic ContractionDogsExerciseOxidation-ReductionCatsFemoral Nerve