Muscle ContractionMuscle, SkeletalActinsMusclesIsometric ContractionMuscle Fibers, SkeletalActin CytoskeletonMuscle ProteinsMyosinsMuscle, SmoothTroponin CTropomyosinTroponinMuscle FatigueRabbitsCalciumElectric StimulationMuscle, Smooth, VascularActin Depolymerizing FactorsCytoskeletonMuscle DevelopmentMicrofilament ProteinsRegional Blood FlowMuscle Fibers, Fast-TwitchPhalloidineMuscle RelaxationMyocardial ContractionMyofibrilsMuscle Fibers, Slow-TwitchUterine ContractionGelsolinActin Capping ProteinsElectromyographyMitochondria, MuscleMuscle, StriatedActomyosinSarcomeresMuscle DenervationTime FactorsModels, BiologicalMyocytes, Smooth MuscleMuscle SpindlesAdenosine TriphosphateKineticsCells, CulturedTracheaGuinea PigsBiomechanical PhenomenaMyosin Light ChainsMyosin SubfragmentsHindlimbActininChickensPotassium ChlorideRats, Sprague-DawleyMyosin Heavy ChainsCytochalasin DVasoconstrictionPhosphorylationRats, WistarProtein BindingSatellite Cells, Skeletal MuscleMolecular Sequence DataMuscular DiseasesDestrinPapillary MusclesMuscular AtrophyQuadriceps MuscleMuscle CellsContractile ProteinsTropomodulinThiazolidinesNeck MusclesDose-Response Relationship, DrugActin-Related Protein 2-3 ComplexMotor NeuronsMuscle WeaknessAmino Acid SequenceMyocardiumOculomotor MusclesIsotonic ContractionSignal TransductionMicroscopy, ElectronMicroscopy, FluorescencePsoas MusclesPeristalsisRespiratory Musclesrho-Associated KinasesAcetylcholineStress, MechanicalIntermediate Filament ProteinsCytoskeletal ProteinsPhysical ExertionAbdominal MusclesDiaphragmCalmodulin-Binding ProteinsDogsGlycogenCapZ Actin Capping ProteinActin-Related Protein 2