Blood Flow VelocityNeural ConductionEchocardiography, DopplerPulsatile FlowBiomechanical PhenomenaTime FactorsUltrasonography, DopplerMicroscopy, Electron, ScanningDiastoleRheologyUltrasonography, Doppler, TranscranialUltrasonography, Doppler, ColorMicroscopy, ElectronMovementEchocardiography, Doppler, PulsedUltrasonography, Doppler, PulsedModels, BiologicalRotationSystoleMiddle Cerebral ArteryCerebrovascular CirculationRegional Blood FlowEchocardiography, Doppler, ColorAccelerationMitral ValveKineticsReflex, Vestibulo-OcularReproducibility of ResultsEye MovementsHemodynamicsNystagmus, PhysiologicBlood PressureMyocardial ContractionCoronary CirculationModels, CardiovascularVentricular Function, LeftPhenotypeAction PotentialsPulse Wave AnalysisElasticityMuscle ContractionPulseSperm MotilityReference ValuesMotion PerceptionPursuit, SmoothCells, CulturedEchocardiographyOphthalmic ArteryLaser-Doppler FlowmetryStress, MechanicalAnalysis of VarianceImage Processing, Computer-AssistedHydrodynamicsDogsCerebral ArteriesMicroscopy, Electron, TransmissionHeart VentriclesCell SizeNeuronsMuscle, SkeletalSpermatozoaProspective StudiesAxonsActinsArteriesHead MovementsMutationPregnancyIsotonic ContractionVascular ResistanceGaitComputer SimulationVideo RecordingMolecular Sequence DataDoppler EffectImaging, Three-DimensionalDendritesAdaptation, PhysiologicalObserver VariationMicroscopy, ConfocalHeartAir MovementsHeart RatePredictive Value of TestsRetinal ArteryUmbilical ArteriesElectromyographyUltrasonography, PrenatalSensitivity and SpecificityRabbitsSkullFossilsTemperatureVentricular Dysfunction, LeftLocomotionCatsAgingAtrial Function, LeftMotor Neurons