Muscle ContractionMuscle, SkeletalIsometric ContractionMuscle Fibers, SkeletalActinsMusclesMyosinsActin CytoskeletonMuscle ProteinsMuscle, SmoothCardiovascular Physiological ProcessesTroponin CTropomyosinRabbitsTroponinCalciumMuscle FatigueElectric StimulationIsotonic ContractionLysostaphinMuscle, Smooth, VascularActin Depolymerizing FactorsMyofibrilsSarcomeresNegative StainingCytoskeletonMuscle DevelopmentMicrofilament ProteinsRegional Blood FlowDiacetylMuscle Fibers, Fast-TwitchDiaphragmPhalloidineMyocardial ContractionMuscle RelaxationMuscle Fibers, Slow-TwitchUterine ContractionGelsolinHeterocyclic Compounds with 4 or More RingsActin Capping ProteinsElectromyographyMitochondria, MuscleActomyosinMuscle, StriatedMuscle DenervationTime FactorsLumbosacral RegionModels, BiologicalKineticsMyocytes, Smooth MuscleAdenosine TriphosphateCells, CulturedMuscle SpindlesPeptidoglycanTracheaGuinea PigsMolecular Sequence DataBiomechanical PhenomenaMyosin Light ChainsMyosin SubfragmentsHindlimbChickensActininProtein BindingRats, Sprague-DawleyPotassium ChlorideMyosin Heavy ChainsPhosphorylationAmino Acid SequenceCytochalasin DVasoconstrictionRats, WistarSatellite Cells, Skeletal MuscleMuscular DiseasesMuscular AtrophyDestrinPapillary MusclesQuadriceps MuscleMuscle CellsContractile ProteinsDose-Response Relationship, DrugTropomodulinThiazolidinesNeck MusclesMicroscopy, ElectronMyocardiumSignal TransductionMotor NeuronsActin-Related Protein 2-3 ComplexMuscle WeaknessOculomotor MusclesMicroscopy, FluorescencePsoas MusclesStress, MechanicalPeristalsisRespiratory Musclesrho-Associated KinasesAcetylcholineCytoskeletal ProteinsPhysical Exertion