Muscle Fibers, Fast-TwitchMusclesMuscle Fibers, Slow-TwitchMuscle Fibers, SkeletalMuscle ContractionMuscle, SkeletalMuscle DenervationRepetition PrimingMuscle ProteinsSarcoplasmic ReticulumCalcium-Transporting ATPasesRabbitsMuscle DevelopmentMuscle, SmoothCalciumIsometric ContractionRana temporariaNerve FibersMyofibrilsMuscle, Smooth, VascularElectric StimulationMuscle FatigueNeuromuscular JunctionTime FactorsMyosin Heavy ChainsDiaphragmMitochondria, MuscleSarcomeresElectromyographyMuscle SpindlesMotor NeuronsPsoas MusclesAnuraRana pipiensDietary FiberOculomotor MusclesMuscle RelaxationAction PotentialsMuscular AtrophyMuscular DiseasesPapillary MusclesMembrane PotentialsMuscle, StriatedQuadriceps MuscleMuscle WeaknessBiomechanical PhenomenaMotor EndplateHindlimbThoracicaRespiratory MusclesMasseter MuscleNeck MusclesMuscular Dystrophy, AnimalMyocytes, Smooth MuscleMyosinsSatellite Cells, Skeletal MuscleMasticatory MusclesAbdominal MusclesMineral FibersWeight LiftingCaffeineReaction TimeIntercostal MusclesSnakesHistocytochemistryMice, Inbred mdxCatsSarcolemmaRanidaeKineticsRats, WistarMuscle CellsRana esculentaMicroscopy, ElectronElectrophysiologyFacial MusclesIsotonic ContractionNeural ConductionMagnetic Resonance ImagingModels, BiologicalTubocurarineCotton FiberPectoralis MusclesPurkinje FibersTendonsResistance TrainingAdaptation, PhysiologicalRecognition (Psychology)AgingLanguage TestsRats, Sprague-DawleyAnalysis of VarianceTorquePaired-Associate LearningDystrophinExerciseRegenerationPhotic StimulationNADH Tetrazolium ReductasePhysical Exertion