Muscle RelaxationMuscle, SkeletalMuscle, SmoothMusclesMuscle ContractionRelaxation TherapyMuscle, Smooth, VascularMuscle ProteinsMuscle Fibers, SkeletalVasodilationMyostatinNitric OxideMuscle DevelopmentRelaxationAcetylcholineTracheaCyclic GMPMuscular AtrophyIsometric ContractionMuscle StrengthVasodilator AgentsNitroprussideMuscle FatigueEndothelium, VascularSarcopeniaDose-Response Relationship, DrugTime FactorsCalciumMitochondria, MuscleQuadriceps MuscleRats, Sprague-DawleyElectric StimulationElectromyographyNitroarginineBiological FactorsDeuteroporphyrinsRabbitsExercisePenisHSP20 Heat-Shock ProteinsResistance TrainingAorta, ThoracicGuinea PigsMuscle TonusNeuromuscular BlockadeInsulinNeuromuscular Nondepolarizing AgentsOxadiazolesIsoproterenolHindlimbNitric Oxide DonorsMuscle Fibers, Fast-TwitchVasoactive Intestinal PeptideRats, WistarNitric Oxide SynthaseGuanylate CyclaseNG-Nitroarginine Methyl EsterPhysical EnduranceMuscle DenervationMuscle Fibers, Slow-TwitchEnzyme InhibitorsAortaOpossumsMyocytes, Smooth MuscleCyclic GMP-Dependent Protein KinasesDogsMyocardial ContractionHypertrophySignal TransductionCreatineGlycogenPhenylephrineGlucoseArginineAnal CanalMagnetic Resonance SpectroscopyPapillary MusclesNitroglycerinPenile ErectionPhysical ExertionCells, CulturedRegional Blood FlowMice, Inbred C57BLMesenteric ArteriesVasoconstrictionKineticsBlood PressureOrgan SizeNeck MusclesAdrenergic beta-AgonistsOculomotor MusclesVasoconstrictor AgentsNorepinephrineQuinoxalinesMuscle, StriatedMembrane PotentialsAdaptation, PhysiologicalCyclic AMPGastric FundusAndrostanols