Muscle ContractionMuscle Fibers, Slow-TwitchMusclesMuscle, SkeletalMuscle Fibers, SkeletalArsenazo IIISnakesRana temporariaMuscle Fibers, Fast-TwitchIsometric ContractionHeptaminolMuscle ProteinsCalciumAnuraTroponin CElectric StimulationMuscle DenervationRana pipiensTroponinMuscle FatigueMuscle, SmoothRabbitsMyosinsHypertonic SolutionsTropomyosinMembrane PotentialsMuscle DevelopmentMyofibrilsMotor NeuronsMuscle, Smooth, VascularSarcoplasmic ReticulumNeural ConductionRegional Blood FlowNeuromuscular JunctionTime FactorsCatsMitochondria, MuscleMuscle RelaxationCalcium-Transporting ATPasesElectromyographyMuscular AtrophyMuscle SpindlesSarcomeresMyosin Heavy ChainsDiaphragmMuscular DiseasesSatellite Cells, Skeletal MuscleMyocardiumHindlimbMyocardial ContractionMotor EndplateAction PotentialsMuscle, StriatedOculomotor MusclesPsoas MusclesQuadriceps MuscleNerve FibersMyocytes, Smooth MusclePapillary MusclesMuscle WeaknessNeck MusclesMuscle CellsRats, WistarRespiratory MusclesBiomechanical PhenomenaPotassiumRats, Sprague-DawleyMuscular Dystrophy, AnimalAbdominal MusclesTetrodotoxinUterine ContractionGlycogenElectrophysiologyActinsCaffeineMolecular Sequence DataMyoblastsMasseter MuscleSarcolemmaMasticatory MusclesGuinea PigsKineticsPhysical ExertionCells, CulturedMice, Inbred mdxIsotonic ContractionFacial MusclesModels, BiologicalAdenosine TriphosphateIntercostal MusclesDose-Response Relationship, DrugRegenerationExerciseRNA, MessengerTracheaAcetylcholineBase SequenceTorqueDystrophinMyosin Light Chains