WalkingChromosome WalkingBiomechanical PhenomenaGait Disorders, NeurologicLocomotionEnvironment DesignOrthotic DevicesExercise TestFootAnkle JointPostural BalanceWalkersIntermittent ClaudicationAnkleTransportationCanesExercise TherapyLegElectromyographyShoesAccelerationMobility LimitationRunningWeight-BearingMotor ActivityCrutchesArtificial LimbsMuscle, SkeletalTime FactorsBicyclingEnergy MetabolismLower ExtremityMonitoring, AmbulatoryExerciseExercise ToleranceKnee JointResidence CharacteristicsRoboticsPostureRecovery of FunctionActivities of Daily LivingDisability EvaluationHip JointRange of Motion, ArticularParesisAmputeesTreatment OutcomePeripheral Arterial DiseaseAccidental FallsHipOxygen ConsumptionMuscle StrengthPhysical ExertionExtremitiesSelf-Help DevicesAnalysis of VarianceRecreationKneeHemiplegiaAdaptation, PhysiologicalPhysical FitnessVideo RecordingQuestionnairesGravitationCerebral PalsySpinal Cord InjuriesSafetyProprioceptionMovementPhysical Therapy ModalitiesModels, BiologicalPsychomotor PerformanceCross-Sectional StudiesPeripheral Vascular DiseasesProspective StudiesOrthopedic EquipmentFollow-Up StudiesFoot OrthosesReproducibility of ResultsStrokeMolecular Sequence DataCity PlanningMusculoskeletal Physiological PhenomenaAngina, StableQuality of LifeLeisure Activities