Collateral CirculationExercise TestCoronary CirculationExercise TherapyExerciseCollateral LigamentsExercise ToleranceCircle of WillisKidney CalicesCerebrovascular CirculationArterial Occlusive DiseasesCoronary AngiographyCerebral AngiographyAngiographyCoronary OcclusionLiver CirculationRegional Blood FlowAngina PectorisHypertension, PortalPhysical ExertionIschemiaMedial Collateral Ligament, KneeCoronary DiseaseLigationConstriction, PathologicBlood Flow VelocityCoronary VesselsBalloon OcclusionCineangiographyMagnetic Resonance AngiographyHemodynamicsCarotid Artery, InternalCeliac ArteryBlood CirculationTime FactorsCerebral ArteriesAngioplasty, Balloon, CoronaryDoppler EffectHindlimbElectrocardiographyFemoral ArteryCoronary StenosisCerebral Arterial DiseasesMyocardial InfarctionNeovascularization, PhysiologicOxygen ConsumptionMoyamoya DiseaseCarotid Artery, ExternalAngiography, Digital SubtractionBlood PressureCardiac CatheterizationTomography, X-Ray ComputedCarotid StenosisTreatment OutcomeBrain IschemiaMyocardial IschemiaInfarction, Middle Cerebral ArteryPhlebographyMuscle, SkeletalDogsPhysical EnduranceArteriesPulmonary CirculationEmbolization, TherapeuticProspective StudiesCerebral InfarctionExtracorporeal CirculationCoronary Artery DiseaseHeart RateFollow-Up StudiesCarotid Artery DiseasesStrokeCarotid ArteriesDisease Models, AnimalMagnetic Resonance ImagingBicyclingRestSeverity of Illness IndexBrainPhysical FitnessRetrospective StudiesResistance TrainingPulmonary Gas ExchangeLactic AcidAnaerobic ThresholdRunningVascular ResistanceMuscle Stretching Exercises