PlethysmographyPlethysmography, Whole BodyPlethysmography, ImpedanceForearmWhole Body ImagingRegional Blood FlowLegDevice ApprovalVasodilationAirway ResistanceNitroprussideomega-N-MethylarginineThoraxRespiratory MechanicsVeinsEquipment DesignRespirationLung Volume MeasurementsVasodilator AgentsTidal VolumeVascular ResistanceHyperemiaTotal Lung CapacityPulmonary VentilationBlood PressureMethacholine ChlorideThoracic WallVenous PressureMuscle, SkeletalIntrauterine DevicesInfusions, Intra-ArterialBody CompositionHand-Arm Vibration SyndromeFunctional Residual CapacityEquipment SafetyVenous InsufficiencyWhole-Body CountingBlood Flow VelocityRespiratory Function TestsTime FactorsVascular CapacitanceAcetylcholinePostphlebitic SyndromeVibrationHeart RateDevice RemovalReproducibility of ResultsHemodynamicsEquipment and SuppliesPostureEndothelium, VascularExercisePhlebographyLungCross-Over StudiesBrachial ArteryThrombophlebitisBronchoconstrictor AgentsAnalysis of VarianceReference ValuesVasoconstrictionOxygen ConsumptionSeptal Occluder DeviceBody WeightAirway ObstructionBlood CirculationAirSensitivity and SpecificityMicrofluidic Analytical TechniquesAbsorptiometry, PhotonFemoral VeinAdipose TissueBlood VolumeSpirometryDose-Response Relationship, DrugNitric OxideFluid ShiftsPopliteal VeinBody TemperatureInsulinAbdomenResidual VolumeBody Temperature RegulationInhalationHypercapniaApneaSplanchnic CirculationVasoconstrictor AgentsLower Body Negative PressureSympathetic Nervous SystemDouble-Blind MethodSelf-Help DevicesSkinOscillometryHeliumWhole-Body IrradiationElectric ImpedanceTreatment OutcomeEnergy MetabolismAnoxia