Muscle ContractionOxygenLow Tension GlaucomaIsometric ContractionStress, MechanicalMuscle TonusMusclesSarcomeresCalciumBiomechanical PhenomenaMyocardial ContractionPapillary MusclesCarbon DioxideElasticityMyofibrilsMuscle RelaxationRabbitsMuscle, SmoothRana temporariaTime FactorsElectric StimulationAequorinTensile StrengthPsoas MusclesAnoxiaModels, BiologicalAnuraMyosinsBlood Gas AnalysisStrophanthidinPulmonary SurfactantsMechanotransduction, CellularPneumocephalusActomyosinConnectinPressureBiophysicsCaffeineMuscle, SkeletalPotassium ChlorideOxygen ConsumptionOptical TweezersDogsVasoconstrictionBiophysical PhenomenaMuscle Fibers, SkeletalCatsKinetochoresSurface-Active AgentsBlood Gas Monitoring, TranscutaneousMuscle, Smooth, VascularActin CytoskeletonFerretsPotassiumPneumoperitoneumViscosityTension-Type HeadacheGuinea PigsHypertonic SolutionsDose-Response Relationship, DrugRana esculentaCell HypoxiaRana pipiensMyocardiumPulmonary Gas ExchangeKineticsHeartRespirationHydrogen-Ion ConcentrationActinsTemperaturePurkinje FibersPolarographyMembrane PotentialsTroponin CAdenosine TriphosphateThoracostomyTracheaDiacetylMuscle Fibers, Fast-TwitchHypercapniaNorepinephrineArteriesCytoskeletonPneumothoraxTroponinVasoconstrictor AgentsVasodilationMechanoreceptorsLipid BilayersAcetylcholineRats, WistarMyosin Light ChainsSwineMuscle Fibers, Slow-TwitchMyographyAction PotentialsMuscle FatigueNitric OxideSurface Properties