Peak Expiratory Flow RateOxygen ConsumptionChromatography, High Pressure LiquidKineticsBlood Flow VelocityExercise ToleranceExerciseSeasonsBiomechanical PhenomenaCalciumReproducibility of ResultsMuscle, SkeletalMyocardial ContractionHeart RateCircadian RhythmDose-Response Relationship, DrugAnaerobic ThresholdEchocardiography, DopplerPhysical EnduranceAnalysis of VarianceAction PotentialsChromatography, GelHemodynamicsSystoleReference ValuesMagnetic Resonance SpectroscopyDiastoleMuscle ContractionSensitivity and SpecificityMembrane PotentialsRats, Sprague-DawleyHalf-LifePressureDogsElectrophysiologyAlgorithmsStroke VolumeModels, BiologicalElectric StimulationPhysical ExertionMolecular WeightBlood PressureHydrogen-Ion ConcentrationRabbitsHeart VentriclesTorqueProspective StudiesAsthmaPulmonary VentilationTemperatureIsometric ContractionAdministration, OralMass SpectrometryRespiratory Function TestsElectromyographyCattleEchocardiographyCells, CulturedArea Under CurveCross-Over StudiesStress, MechanicalCatsPulmonary Gas ExchangeChromatography, Ion ExchangeAgingRegional Blood FlowSpectrometry, Mass, Matrix-Assisted Laser Desorption-IonizationVentricular Dysfunction, LeftElectrophoresis, CapillaryRunningPeriodicityMolecular Sequence DataOxygenAccelerationFourier AnalysisPregnancyPredictive Value of TestsRats, Inbred StrainsLiverLungHeart FailureMusclesDouble-Blind MethodRespirationNeuronsLegComputer SimulationSignal Processing, Computer-AssistedBicyclingMovementElectrophoresis, Polyacrylamide GelPatch-Clamp TechniquesGas Chromatography-Mass SpectrometryMuscle StrengthAge FactorsReaction TimeTreatment OutcomeRNA, MessengerRats, WistarRadioimmunoassay