Biomechanical PhenomenaStress, MechanicalMechanical ProcessesMechanical PhenomenaRespiration, ArtificialMechanotransduction, CellularElasticityPhysical StimulationTensile StrengthElastic ModulusVentilators, MechanicalCompressive StrengthHyperalgesiaMaterials TestingMechanicsWeight-BearingTime FactorsVentilator Weaning