Muscle ContractionMuscle, SkeletalAcetylcholineMuscle Fibers, SkeletalMusclesIsometric ContractionTroponin CTroponinMuscle ProteinsMyosinsMuscle FatigueCalciumElectric StimulationTropomyosinRabbitsMuscle, SmoothRegional Blood FlowMuscle, Smooth, VascularReceptors, CholinergicMuscle DevelopmentReceptors, NicotinicSciatic NerveMuscle Fibers, Fast-TwitchMuscle Fibers, Slow-TwitchMuscle RelaxationMitochondria, MuscleMuscle DenervationNeuromuscular JunctionRats, Sprague-Dawleyalpha7 Nicotinic Acetylcholine ReceptorMyocardial ContractionPeripheral NervesGuinea PigsUterine ContractionElectromyographyRats, WistarTime FactorsDose-Response Relationship, DrugNerve FibersMyofibrilsAtropineCells, CulturedSatellite Cells, Skeletal MuscleHindlimbCarbacholBungarotoxinsKineticsMuscular AtrophyOptic NerveReceptors, MuscarinicMotor NeuronsVasoconstrictionTracheaNerve EndingsMuscular DiseasesDiaphragmMembrane PotentialsAdenosine TriphosphateTorpedoSarcoplasmic ReticulumPotassium ChlorideMuscle SpindlesMyocytes, Smooth MuscleNerve RegenerationMuscle CellsActinsRNA, MessengerMyocardiumRyanodine Receptor Calcium Release ChannelDogsSignal TransductionCatsSarcomeresQuadriceps MuscleNorepinephrineMuscle, StriatedVasodilationPotassiumGlycogenModels, BiologicalMolecular Sequence DataElectrophysiologyAction PotentialsPhosphorylationPhysical ExertionTibial NerveMuscle WeaknessInsulinMice, Inbred C57BLNicotinic AntagonistsMuscarinic AntagonistsVesicular Acetylcholine Transport ProteinsMyoblastsOculomotor MusclesTubocurarineMyosin Heavy ChainsEnzyme InhibitorsGlucoseBiomechanical PhenomenaCholinergic Agonists