WalkingChromosome WalkingBiomechanical PhenomenaGait Disorders, NeurologicLocomotionEnvironment DesignOrthotic DevicesFootAnkle JointExercise TestPostural BalanceWalkersIntermittent ClaudicationAnkleTransportationCanesExercise TherapyElectromyographyLegAccelerationShoesMotor ActivityMobility LimitationWeight-BearingRunningCrutchesArtificial LimbsMuscle, SkeletalBicyclingTime FactorsLower ExtremityEnergy MetabolismMonitoring, AmbulatoryExerciseKnee JointPostureExercise ToleranceResidence CharacteristicsRoboticsRecovery of FunctionActivities of Daily LivingDisability EvaluationRange of Motion, ArticularHip JointParesisAmputeesAccidental FallsExtremitiesHipTreatment OutcomePeripheral Arterial DiseaseMuscle StrengthAnalysis of VarianceSelf-Help DevicesHemiplegiaQuestionnairesOxygen ConsumptionPhysical ExertionRecreationKneeVideo RecordingAdaptation, PhysiologicalPhysical FitnessMovementGravitationPsychomotor PerformanceCross-Sectional StudiesSpinal Cord InjuriesCerebral PalsyPhysical Therapy ModalitiesModels, BiologicalSafetyProprioceptionFoot OrthosesCity PlanningPeripheral Vascular DiseasesStrokeOrthopedic EquipmentProspective StudiesMusculoskeletal Physiological PhenomenaFollow-Up StudiesQuality of LifeLeisure ActivitiesMolecular Sequence Data