PlethysmographyPlethysmography, Whole BodyPlethysmography, ImpedanceForearmRegional Blood FlowClinical ProtocolsLegomega-N-MethylarginineVasodilationNitroprussideAirway ResistanceLung Volume MeasurementsRespiratory MechanicsThoraxVeinsRespirationHyperemiaVasodilator AgentsTidal VolumeTotal Lung CapacityVascular ResistancePulmonary VentilationVenous PressureThoracic WallInfusions, Intra-ArterialMethacholine ChlorideHand-Arm Vibration SyndromeFunctional Residual CapacityVenous InsufficiencyBlood PressureVascular CapacitanceAcetylcholinePostphlebitic SyndromeRespiratory Function TestsBlood Flow VelocityEndothelium, VascularPhlebographyThrombophlebitisHeart RateBrachial ArteryHemodynamicsReproducibility of ResultsBronchoconstrictor AgentsTime FactorsAirway ObstructionSpirometryVasoconstrictionFluid ShiftsAirCross-Over StudiesPosturePopliteal VeinLungResidual VolumeInhalationLower Body Negative PressureBlood VolumeApneaHeliumAnalysis of VarianceDose-Response Relationship, DrugNitric OxideHypercapniaFemoral VeinSupine PositionVasoconstrictor AgentsSkin TemperatureVasomotor SystemDouble-Blind MethodNitroglycerinRaynaud DiseaseSensitivity and SpecificityOscillometryReference ValuesFingersVaricose VeinsRespiratory MusclesCentral Venous PressureComplianceBronchoconstrictionVaricose UlcerAnoxiaGravity SuitsSympathetic Nervous SystemAbdomenRespiratory RateInjections, Intra-ArterialBlood CirculationTilt-Table TestExercisePhotoplethysmographyHypertensionForced Expiratory VolumeDiaphragmBody CompositionTourniquetsUltrasonography, Doppler, DuplexTreatment OutcomeForced Expiratory Flow RatesNorepinephrine