Oxygen ConsumptionOxygenPartial PressureOximetryBlood Gas AnalysisAnoxiaPulmonary Gas ExchangeOxygen Inhalation TherapyCarbon DioxideReactive Oxygen SpeciesRespirationBlood Gas Monitoring, TranscutaneousLung Diseases, ObstructiveEnergy MetabolismHemodynamicsAltitudeExercise TestCardiac OutputHeart RateRespiratory Function TestsExercisePhysical ExertionRespiratory InsufficiencyVentilation-Perfusion RatioPulmonary VentilationCyanosisAlcohol DrinkingTime FactorsPulmonary CirculationLactic AcidRespiration, ArtificialOxyhemoglobinsHypercapniaBlood PressureExercise TolerancePositive-Pressure RespirationDogsRespiratory Distress Syndrome, AdultAltitude SicknessHemoglobinsLungHemodilutionMitochondriaArteriesRespiratory MechanicsPolarographyOxidation-ReductionMyocardiumBody Temperature RegulationLactatesSinglet OxygenProspective StudiesHyperoxiaAlmitrinePhysical EnduranceCell RespirationRegional Blood FlowCerebrovascular CirculationApneaDietTidal VolumeSleep Apnea SyndromesMonitoring, PhysiologicIntermittent Positive-Pressure VentilationCoronary CirculationHepatopulmonary SyndromeSpectroscopy, Near-InfraredIon-Selective ElectrodesProtriptylineHematocritSpirometryGlucoseBody TemperatureHeartPulmonary Heart DiseaseVascular ResistanceMuscle, SkeletalRespiratory Physiological PhenomenaCross-Over StudiesAnalysis of VarianceAdenosine TriphosphateOxygen IsotopesOxidative PhosphorylationMountaineeringPlasma VolumeBody WeightBasal MetabolismForced Expiratory VolumeNitric OxideEthanolHydrogen-Ion ConcentrationVital CapacityCarotid BodySleepRestHypoventilationAcclimatizationSwineBeveragesGlycolysis