MyosinsMuscle ContractionMuscle, SkeletalActinsMuscle Fibers, SkeletalMusclesIsometric ContractionTroponin CTroponinMuscle ProteinsTropomyosinMuscle FatigueRabbitsCalciumMuscle, SmoothMyosin Heavy ChainsElectric StimulationActin CytoskeletonMyosin Light ChainsMyosin SubfragmentsRegional Blood FlowMyosin Type IIActin Depolymerizing FactorsMuscle, Smooth, VascularMuscle DevelopmentMuscle Fibers, Fast-TwitchMyosin Type VMuscle Fibers, Slow-TwitchMitochondria, MuscleMyofibrilsActomyosinMuscle RelaxationMyocardial ContractionMyosin-Light-Chain KinaseUterine ContractionMuscle DenervationMyosin Type INonmuscle Myosin Type IIACytoskeletonElectromyographyCardiac MyosinsSatellite Cells, Skeletal MuscleSarcomeresNonmuscle Myosin Type IIBAdenosine TriphosphatePhosphorylationMuscular AtrophyKineticsActin Capping ProteinsTime FactorsMuscular DiseasesMuscle, StriatedHindlimbChickensCells, CulturedSmooth Muscle MyosinsMyocardiumMolecular Sequence DataRats, Sprague-DawleyRats, WistarMyocytes, Smooth MuscleModels, BiologicalSkeletal Muscle MyosinsMuscle SpindlesPotassium ChlorideMuscle CellsTracheaAmino Acid SequenceGuinea PigsQuadriceps MuscleBiomechanical Phenomenarho-Associated KinasesVasoconstrictionAdenosine TriphosphatasesMyosin-Light-Chain PhosphatasePhalloidineGlycogenSignal TransductionMyoblastsRNA, MessengerGizzardProtein IsoformsSarcoplasmic ReticulumMuscle WeaknessPhysical ExertionDiaphragmPsoas MusclesProtein BindingCa(2+) Mg(2+)-ATPaseDose-Response Relationship, DrugOculomotor MusclesPapillary MusclesMicroscopy, ElectronIsotonic ContractionMotor NeuronsContractile ProteinsNeck MusclesInsulinDogsExercise