Muscle Fibers, Slow-TwitchMusclesMuscle Fibers, SkeletalMuscle Fibers, Fast-TwitchHypertrophyMuscle ContractionMuscle, SkeletalLactatesMuscle DenervationHypertrophy, Left VentricularMuscle ProteinsCardiomegalyMotor NeuronsMuscle DevelopmentNeural ConductionMuscle, SmoothSarcoplasmic ReticulumElectric StimulationMyocardiumLactic AcidRana temporariaMyofibrilsTime FactorsCatsNerve FibersMuscle, Smooth, VascularIsometric ContractionRabbitsMyosin Heavy ChainsNeuromuscular JunctionMuscle FatigueCalcium-Transporting ATPasesCalciumDiaphragmSarcomeresL-Lactate DehydrogenaseMitochondria, MuscleMuscle SpindlesMuscular AtrophyPsoas MusclesAnuraRana pipiensDietary FiberMuscle RelaxationMuscular DiseasesOculomotor MusclesElectromyographyHypertrophy, Right VentricularPapillary MusclesRats, Sprague-DawleyRats, WistarMuscle, StriatedAction PotentialsMembrane PotentialsMuscle WeaknessHindlimbMyocardial ContractionHeartQuadriceps MuscleOrgan SizeMolecular Sequence DataMotor EndplateMasseter MuscleCells, CulturedMyocytes, Smooth MuscleSatellite Cells, Skeletal MuscleThoracicaMyocytes, CardiacMyosinsRespiratory MusclesMuscular Dystrophy, AnimalMuscle CellsNeck MusclesBase SequenceBiomechanical PhenomenaSarcolemmaMasticatory MusclesCaffeineHistocytochemistryMineral FibersAbdominal MusclesMice, Inbred mdxGlycogenSnakesIntercostal MusclesKineticsHeart VentriclesMicroscopy, ElectronRNA, MessengerRanidaeMice, Inbred C57BLModels, BiologicalOxygen ConsumptionDisease Models, AnimalPectoralis MusclesFacial MusclesRana esculentaRats, Inbred StrainsTubocurarineMice, Transgenic