PlethysmographyPlethysmography, ImpedanceElectric ImpedancePlethysmography, Whole BodyCardiography, ImpedanceForearmRegional Blood FlowDielectric SpectroscopyAirway ResistanceRespiratory MechanicsThoraxLegVascular ResistanceLung Volume MeasurementsNitroprussideVasodilationomega-N-MethylarginineRespirationVeinsBody CompositionTidal VolumeElectrodesPulmonary VentilationBody WaterVasodilator AgentsTotal Lung CapacityHyperemiaMethacholine ChlorideFunctional Residual CapacityThoracic WallBlood PressureTomographyRespiratory Function TestsAcoustic Impedance TestsVenous PressureHemodynamicsInfusions, Intra-ArterialBlood Flow VelocityOscillometryVascular CapacitanceHand-Arm Vibration SyndromeVenous InsufficiencyReproducibility of ResultsPostphlebitic SyndromeThrombophlebitisAcetylcholineFluid ShiftsHeart RateBronchoconstrictor AgentsAirway ObstructionEquipment DesignLungPostureEndothelium, VascularCompliancePhlebographyBlood CirculationAnthropometryMeridiansSpirometryBrachial ArteryLung ComplianceSupine PositionBlood VolumeApneaSensitivity and SpecificityHeliumInhalationVasoconstrictionReference ValuesLower Body Negative PressureTime FactorsArteriesIndicator Dilution TechniquesAirPressurePopliteal VeinResidual VolumeCross-Over StudiesAnalysis of VarianceCardiac OutputElectric ConductivityArmRespiratory RateNitroglycerinBronchoconstrictionModels, BiologicalTilt-Table TestRespiratory MusclesGravity SuitsEsophageal pH MonitoringFemoral VeinEquipment Failure AnalysisVasomotor SystemHypercapniaRaynaud DiseaseForced Expiratory VolumeManometryVasoconstrictor AgentsNitric Oxide