Muscle, SkeletalMuscle ContractionMyosinsMusclesMuscle Fibers, SkeletalIsometric ContractionRana temporariaMuscle ProteinsRana pipiensAnuraRanidaeCalciumTroponin CTroponinMuscle FatigueMuscle, SmoothRabbitsTropomyosinElectric StimulationMyosin Heavy ChainsRana esculentaMuscle DevelopmentRana catesbeianaMyofibrilsMuscle, Smooth, VascularMuscle Fibers, Fast-TwitchMuscle Fibers, Slow-TwitchSarcomeresMitochondria, MuscleTetracaineRegional Blood FlowMyosin Light ChainsMyosin SubfragmentsSarcoplasmic ReticulumMuscle RelaxationMembrane PotentialsMuscle DenervationMyosin Type IISatellite Cells, Skeletal MuscleCaffeineActinsTime FactorsKineticsMuscular AtrophyNaphthalenesulfonatesMuscular DiseasesPotassiumModels, BiologicalAdenosine TriphosphateHindlimbMyosin Type VMuscle, StriatedElectromyographyArsenazo IIIMuscle CellsSarcolemmaQuadriceps MuscleMyocytes, Smooth MuscleGlycogenMuscle SpindlesMyoblastsElectrophysiologyRyanodine Receptor Calcium Release ChannelMuscle WeaknessMyocardial ContractionHypertonic SolutionsElectric ConductivityMyocardiumBiomechanical PhenomenaOculomotor MusclesActomyosinRats, WistarIon ChannelsAction PotentialsRats, Sprague-DawleyMyosin-Light-Chain KinaseSkeletal Muscle MyosinsDantrolenePhosphorylationCells, CulturedMagnesiumNeck MusclesRNA, MessengerRigor MortisInsulinPapillary MusclesPhysical ExertionMyoblasts, SkeletalCalcium ChannelsUterine ContractionChickensDiaphragmMolecular Sequence DataRespiratory MusclesCardiac MyosinsMyoD ProteinPsoas MusclesNeuromuscular JunctionAbdominal MusclesExercise