ActinsMuscle ContractionMuscle, SkeletalMyosinsMuscle Fibers, SkeletalMusclesIsometric ContractionMuscle ProteinsTroponin CTroponinMuscle Fibers, Fast-TwitchMuscle, SmoothMuscle FatigueMuscle Fibers, Slow-TwitchRabbitsTropomyosinMyosin Heavy ChainsCalciumElectric StimulationMuscle DevelopmentMuscle, Smooth, VascularActin CytoskeletonMyosin Light ChainsMyosin SubfragmentsMyofibrilsMuscle DenervationRegional Blood FlowMyosin Type IIMitochondria, MuscleActin Depolymerizing FactorsMuscle RelaxationSarcomeresMuscular AtrophyMuscular DiseasesMuscle, StriatedMyosin Type VMuscle SpindlesElectromyographySatellite Cells, Skeletal MuscleActomyosinPsoas MusclesRana temporariaTime FactorsHindlimbOculomotor MusclesMyocytes, Smooth MuscleNerve FibersNeuromuscular JunctionMuscle WeaknessQuadriceps MuscleMyocardial ContractionKineticsDiaphragmAdenosine TriphosphateMuscle CellsNeck MusclesBiomechanical PhenomenaCells, CulturedMotor NeuronsMyosin-Light-Chain KinaseSkeletal Muscle MyosinsRats, WistarPapillary MusclesMyosin Type IModels, BiologicalSarcoplasmic ReticulumChickensRats, Sprague-DawleyCytoskeletonPhosphorylationMuscular Dystrophy, AnimalCardiac MyosinsUterine ContractionRespiratory MusclesMyocardiumMyoblastsGlycogenRana pipiensAbdominal MusclesMasseter MuscleAnuraMicroscopy, ElectronNonmuscle Myosin Type IIBNonmuscle Myosin Type IIAMolecular Sequence DataMasticatory MusclesProtein IsoformsAdenosine TriphosphatasesMembrane PotentialsRNA, MessengerMice, Inbred mdxSarcolemmaFacial MusclesPhysical ExertionSmooth Muscle MyosinsIsotonic ContractionGuinea PigsAmino Acid SequenceSignal TransductionCaffeine