Muscle ContractionMuscle, SkeletalIsometric ContractionMusclesMuscle Fibers, SkeletalMuscle, SmoothMuscle ProteinsElectric StimulationTroponin CMuscle FatigueTroponinUterine ContractionMyosinsCalciumTropomyosinRabbitsMyocardial ContractionRegional Blood FlowMuscle, Smooth, VascularMuscle DevelopmentGastrointestinal MotilityMuscle Fibers, Fast-TwitchLymphatic VesselsBiomechanical PhenomenaPhysical ExertionOxygen ConsumptionMuscle RelaxationLymphatic SystemMuscle Fibers, Slow-TwitchElectromyographyRats, Sprague-DawleyMitochondria, MuscleIminesVerapamilMyocardiumLegMuscle DenervationTime FactorsMyofibrilsMuscle SpindlesCells, CulturedMyocytes, Smooth MuscleGuinea PigsTracheaHindlimbNG-Nitroarginine Methyl EsterMuscle, StriatedVasoconstrictionRats, WistarSatellite Cells, Skeletal MuscleGene FrequencyPapillary MusclesQuadriceps MuscleMotor NeuronsSarcomeresMuscular AtrophyNeck MusclesMuscular DiseasesActinsMuscle CellsOculomotor MusclesMuscle WeaknessMyosin Light ChainsPotassium ChlorideDose-Response Relationship, DrugPeristalsisOxygenIsotonic ContractionAcetylcholineRespiratory MusclesDiaphragmAbdominal MusclesModels, BiologicalNeuromuscular JunctionAdenosine TriphosphateGlycogenSarcoplasmic ReticulumKineticsMyosin Heavy ChainsFacial MusclesCatsTorquePhosphorylationCaffeineUrinary BladderMuscle TonusCarbacholPsoas MusclesMasticatory MusclesActomyosinDogsExerciseSignal TransductionAction PotentialsMolecular Sequence Datarho-Associated KinasesRNA, MessengerMembrane PotentialsVasoconstrictor AgentsReflex