Physical ProcessesModels, TheoreticalModels, BiologicalComputer SimulationStress, MechanicalMechanical ProcessesPhysical FitnessBiomechanical PhenomenaMechanical PhenomenaMotor ActivityPhysical Therapy ModalitiesExerciseRespiration, ArtificialMechanotransduction, CellularElasticityPhysical StimulationTensile StrengthElastic ModulusPhysical ExertionPhysical ExaminationPhysical Education and TrainingPhysical Therapy SpecialtyVentilators, MechanicalCompressive StrengthTime FactorsQuestionnairesHyperalgesiaMaterials TestingWeight-BearingMechanicsPhysical Chromosome MappingVentilator WeaningMicroscopy, Atomic ForceSedentary LifestylePressurePainWalkingViscosityPain MeasurementCross-Sectional StudiesHardnessQuality of LifeProspective StudiesTreatment OutcomeHealth StatusPain ThresholdMechanoreceptorsRisk Factors