MusclesMuscle Fibers, Fast-TwitchMuscle Fibers, Slow-TwitchMuscle Fibers, SkeletalMuscle ContractionMuscle, SkeletalMuscle ProteinsMuscle DenervationMuscle, SmoothSarcoplasmic ReticulumMuscle DevelopmentMuscle, Smooth, VascularCalcium-Transporting ATPasesRabbitsCalciumMuscle FatigueIsometric ContractionMyofibrilsMitochondria, MuscleRana temporariaMuscle SpindlesNerve FibersElectric StimulationOculomotor MusclesMuscle RelaxationNeuromuscular JunctionMuscle, StriatedMyosin Heavy ChainsMyocytes, Smooth MusclePapillary MusclesDiaphragmNeck MusclesElectromyographyMuscle WeaknessMuscular AtrophyPsoas MusclesRespiratory MusclesSarcomeresQuadriceps MuscleMuscular DiseasesMotor NeuronsMasseter MuscleTime FactorsAbdominal MusclesAnuraMasticatory MusclesRana pipiensSatellite Cells, Skeletal MuscleHindlimbMuscle CellsIntercostal MusclesFacial MusclesMembrane PotentialsDietary FiberAction PotentialsBiomechanical PhenomenaMuscular Dystrophy, AnimalPectoralis MusclesMotor EndplateMice, Inbred mdxThoracicaRats, WistarCaffeineCells, CulturedHistocytochemistrySarcolemmaCatsKineticsMyosinsMyoblastsRats, Sprague-DawleyRegenerationGlycogenTemporal MuscleMicroscopy, ElectronDystrophinRanidaeModels, BiologicalActinsSnakesNeural ConductionMineral FibersElectrophysiologyMyocardiumRana esculentaSkeletal Muscle MyosinsTendonsTubocurarineReceptors, CholinergicRNA, MessengerStress, MechanicalImmunohistochemistryMuscular DystrophiesPhysical ExertionNADH Tetrazolium ReductaseAgingHindlimb SuspensionPotassiumTorqueAdenosine Triphosphate