Muscle Fibers, Slow-TwitchMusclesMuscle Fibers, SkeletalMuscle Fibers, Fast-TwitchHypertrophyMuscle ContractionActinsMuscle, SkeletalMuscle DenervationHypertrophy, Left VentricularActin CytoskeletonMuscle ProteinsCardiomegalyActin Depolymerizing FactorsMotor NeuronsMuscle, SmoothMuscle DevelopmentNeural ConductionSarcoplasmic ReticulumElectric StimulationMyocardiumMyofibrilsRana temporariaRabbitsMuscle, Smooth, VascularNerve FibersCatsTime FactorsIsometric ContractionMyosin Heavy ChainsNeuromuscular JunctionCalciumMuscle FatigueCalcium-Transporting ATPasesSarcomeresDiaphragmActin Capping ProteinsMyosinsMitochondria, MusclePsoas MusclesMuscle SpindlesMuscular AtrophyAnuraRana pipiensMuscle RelaxationDietary FiberMuscular DiseasesOculomotor MusclesCytoskeletonElectromyographyHypertrophy, Right VentricularPapillary MusclesMolecular Sequence DataMuscle, StriatedCells, CulturedAction PotentialsRats, Sprague-DawleyMuscle WeaknessMembrane PotentialsRats, WistarMyocytes, Smooth MuscleHindlimbMyocardial ContractionQuadriceps MuscleMicroscopy, ElectronMotor EndplateMasseter MuscleOrgan SizeHeartBase SequenceBiomechanical PhenomenaSatellite Cells, Skeletal MuscleThoracicaMyocytes, CardiacMuscular Dystrophy, AnimalRespiratory MusclesMuscle CellsNeck MusclesModels, BiologicalHistocytochemistryMasticatory MusclesMineral FibersKineticsAbdominal MusclesCaffeineSignal TransductionMice, Inbred mdxRNA, MessengerSarcolemmaSnakesIntercostal MusclesPhalloidineHeart VentriclesStress, MechanicalRanidaeMice, Inbred C57BLPectoralis MusclesImmunohistochemistryTropomyosinRana esculenta