Back PainLow Back PainChronic PainChronic DiseasePain MeasurementAcupuncture TherapyDisability EvaluationExercise TherapyNeck PainLumbar VertebraeQuestionnairesTreatment OutcomePainMagnetic Resonance ImagingPrevalenceBackPain ManagementPain ThresholdAcute PainActivities of Daily LivingPain, PostoperativePatient SatisfactionPain, IntractableHealth StatusBack InjuriesLumbosacral RegionPelvic PainAbdominal PainPhysical Therapy ModalitiesPain, ReferredPain PerceptionChiropracticManipulation, SpinalSciaticaIntervertebral Disc DisplacementIntervertebral DiscLiftingSpinal DiseasesFacial PainMusculoskeletal PainSacroiliac JointOccupational DiseasesShoulder Pain