Muscle, SkeletalMuscle ContractionMusclesMuscle Fibers, SkeletalIsometric ContractionMuscle ProteinsRana temporariaRana pipiensDihydropyridinesCalciumAnuraRanidaeTroponin CTroponinMuscle FatigueMyosinsRabbitsMuscle, SmoothElectric StimulationTropomyosinIsradipineRana esculentaRana catesbeianaMuscle DevelopmentCalcium Channel BlockersMuscle, Smooth, VascularCalcium ChannelsMyofibrilsSarcoplasmic ReticulumMuscle Fibers, Fast-TwitchTetracaineNifedipineMembrane PotentialsRegional Blood FlowMitochondria, MuscleMuscle Fibers, Slow-TwitchCalcium Channels, L-TypeSarcomeresRyanodine Receptor Calcium Release ChannelCaffeineMuscle RelaxationMuscle DenervationKineticsSatellite Cells, Skeletal MuscleTime FactorsNitrendipineSarcolemmaMuscular AtrophyNaphthalenesulfonatesPotassiumElectrophysiologyIon ChannelsMuscular DiseasesElectric ConductivityMyocardiumModels, BiologicalHindlimbArsenazo IIIElectromyographyMyocardial ContractionMuscle CellsNicardipineQuadriceps MuscleAdenosine TriphosphateMyocytes, Smooth MuscleAction PotentialsCalcium Channel AgonistsNisoldipineMuscle, StriatedGlycogenMuscle SpindlesCells, CulturedRats, Sprague-DawleyRats, WistarMyoblastsActinsHypertonic SolutionsMuscle WeaknessOxadiazolesMyosin Heavy ChainsRyanodinePapillary MusclesOculomotor MusclesDantroleneDose-Response Relationship, DrugNeck MusclesGuinea PigsRNA, MessengerBiomechanical PhenomenaGallopamilMagnesiumInsulinNimodipinePhysical ExertionMolecular Sequence DataUterine ContractionMyoblasts, SkeletalRespiratory MusclesRigor MortisDiaphragm