AcclimatizationAltitudeAnoxiaMountaineeringCell HypoxiaAltitude SicknessCold ClimatePulmonary VentilationOxygenCarbon DioxideBoliviaAdaptation, PhysiologicalAtmospheric PressureCold TemperatureAtmosphere Exposure ChambersSweatingRespirationOxygen ConsumptionPhosphofructokinasesHypoxia, BrainAcid-Base EquilibriumCarotid BodyChemoreceptor CellsHypocapniaAnthozoaCyprinidaeTemperatureFetal HypoxiaRespiratory MechanicsHearing AidsBody Temperature RegulationBlood Gas AnalysisSeasonsPartial PressureTime FactorsHot TemperatureHypoxia-Inducible Factor 1, alpha SubunitPulmonary Gas ExchangeBody TemperatureHeart RateLactic AcidClimate ChangeHematocritFishesPhysical ExertionEnergy MetabolismHemoglobinsBlood PressureHypoxia-Inducible Factor 1Hydrogen-Ion ConcentrationStress, PhysiologicalChronic DiseaseRats, Sprague-DawleyMuscle, SkeletalAcetylcholinesteraseAcute DiseaseCerebrovascular CirculationBody WeightNorepinephrineBrainExercise TestAnalysis of Variance