Metabolic EquivalentExerciseMotor ActivityPublic FacilitiesExercise TestLeisure ActivitiesPhysical FitnessRecreationExercise ToleranceEnergy MetabolismSedentary LifestyleWalkingAccelerometryMonitoring, AmbulatoryBody Mass IndexQuestionnairesOxygen ConsumptionPhysical ExertionExercise TherapyLife StyleProspective StudiesRisk FactorsHeart RateFollow-Up StudiesCross-Sectional StudiesTime FactorsObesityProportional Hazards ModelsReproducibility of ResultsElectrocardiographyCohort StudiesPredictive Value of TestsCardiovascular DiseasesHealth BehaviorRegression AnalysisActivities of Daily LivingMultivariate AnalysisUnited StatesAge FactorsSex FactorsRisk AssessmentLongitudinal StudiesBlood PressureIncidence