Muscle Fibers, SkeletalMusclesMuscle Fibers, Fast-TwitchMuscle Fibers, Slow-TwitchMuscle, SkeletalMuscle ContractionMyelitis, TransverseMuscle ProteinsMuscle DevelopmentMuscle, SmoothColon, TransverseNerve FibersMuscle DenervationMuscle, Smooth, VascularMyofibrilsMuscle FatigueRana temporariaIsometric ContractionMyosin Heavy ChainsMitochondria, MusclePsoas MusclesDietary FiberMuscle SpindlesSarcomeresTransverse SinusesOculomotor MusclesNeuromuscular JunctionCalciumMuscle RelaxationMuscular AtrophyRana pipiensMuscular DiseasesMuscle, StriatedElectric StimulationRabbitsAnuraNeck MusclesThoracicaMuscle WeaknessTime FactorsDiaphragmBiomechanical PhenomenaMotor NeuronsMyocytes, Smooth MuscleAbdominal MusclesElectromyographyMasseter MuscleSatellite Cells, Skeletal MuscleMembrane PotentialsMuscular Dystrophy, AnimalHindlimbSarcolemmaSarcoplasmic ReticulumMineral FibersQuadriceps MusclePapillary MusclesRespiratory MusclesMice, Inbred mdxMyosinsMasticatory MusclesAction PotentialsHistocytochemistryMicroscopy, ElectronMuscle CellsIntercostal MusclesFacial MusclesMotor EndplateCotton FiberPectoralis MusclesDystrophinModels, BiologicalRanidaeTendonsRegenerationStress, MechanicalRats, WistarNADH Tetrazolium ReductaseMyoblastsRana esculentaCaffeineSkeletal Muscle MyosinsCrustaceaActinsCells, CulturedKineticsImmunohistochemistryCatsRats, Sprague-DawleyReceptors, CholinergicNerve Fibers, MyelinatedElectrophysiologyNeural ConductionPurkinje FibersGlycogenMuscular DystrophiesHypertrophyStress FibersElasticityMyocardiumAging