Mitral ValveEchocardiography, DopplerBlood Flow VelocityNeural ConductionPulsatile FlowUltrasonography, DopplerDiastoleUltrasonography, Doppler, TranscranialBiomechanical PhenomenaRheologyUltrasonography, Doppler, ColorEchocardiography, Doppler, PulsedUltrasonography, Doppler, PulsedTime FactorsMovementMiddle Cerebral ArterySystoleCerebrovascular CirculationRotationEchocardiography, Doppler, ColorRegional Blood FlowAccelerationNystagmus, PhysiologicReflex, Vestibulo-OcularEye MovementsPulse Wave AnalysisCoronary CirculationPulseBlood PressureHemodynamicsMyocardial ContractionMotion PerceptionPursuit, SmoothVentricular Function, LeftMuscle ContractionKineticsModels, CardiovascularOphthalmic ArteryElasticityAction PotentialsLaser-Doppler FlowmetryCerebral ArteriesReproducibility of ResultsHead MovementsIsotonic ContractionEchocardiographyReference ValuesDoppler EffectHydrodynamicsModels, BiologicalVascular ResistanceArteriesAir MovementsRetinal ArteryGaitUmbilical Arteries