Physical ProcessesModels, TheoreticalModels, BiologicalComputer SimulationResearchPhysical FitnessResearch Support as TopicResearch DesignEthics, ResearchResearch PersonnelMotor ActivityPhysical Therapy ModalitiesNursing ResearchExerciseHealth Services ResearchTranslational Medical ResearchQuestionnairesGenetic ResearchPhysical Therapy SpecialtyUnited StatesPhysical ExaminationPhysical Education and TrainingPhysical ExertionClinical Nursing ResearchQualitative ResearchCommunity-Based Participatory ResearchDental ResearchBehavioral ResearchCross-Sectional StudiesQuality of LifeRisk FactorsPhysical Chromosome MappingHealth StatusHuman ExperimentationHealth BehaviorSedentary LifestyleReproducibility of ResultsTime FactorsActivities of Daily LivingLife StylePhysical TherapistsWalkingInformed ConsentData CollectionSocioeconomic FactorsLongitudinal StudiesRecreation