Muscle ContractionMuscle, SkeletalIsometric ContractionMuscle Fibers, SkeletalActinsMusclesTroponin CMyosinsTroponinMuscle ProteinsTropomyosinMuscle FatigueRabbitsMuscle, SmoothCalciumActin CytoskeletonElectric StimulationRegional Blood FlowActin Depolymerizing FactorsMuscle, Smooth, VascularUterine ContractionMyocardial ContractionMuscle DevelopmentCytoskeletonMuscle Fibers, Fast-TwitchMyofibrilsMuscle RelaxationMuscle Fibers, Slow-TwitchMitochondria, MuscleElectromyographySarcomeresActin Capping ProteinsGuinea PigsVasoconstrictionTime FactorsActomyosinIntermediate Filament ProteinsMuscle DenervationIsotonic ContractionPhalloidineAdenosine TriphosphatePotassium ChlorideTracheaRats, Sprague-DawleyRats, WistarMuscle, StriatedSatellite Cells, Skeletal MuscleCells, CulturedModels, BiologicalHindlimbMyosin Light ChainsKineticsMuscular AtrophyMuscular DiseasesBiomechanical PhenomenaPhosphorylationDose-Response Relationship, DrugMyocardiumMuscle SpindlesMyosin Heavy ChainsMyocytes, Smooth MuscleMolecular Sequence DataAcetylcholineMicrofilament ProteinsMotor NeuronsPeristalsisSarcoplasmic ReticulumMuscle CellsGelsolinQuadriceps MuscleChickensSignal TransductionPhysical ExertionAmino Acid SequenceDogsPapillary MusclesGlycogenrho-Associated KinasesProtein BindingMyosin SubfragmentsDiaphragmGastrointestinal MotilityDesminUrinary BladderMuscle TonusCaffeinePsoas MusclesTorqueStress, MechanicalVasoconstrictor AgentsRNA, MessengerMyoblastsVimentinMuscle WeaknessCarbacholNorepinephrineNeuromuscular JunctionActininEnzyme InhibitorsPhenylephrine