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  • Title: Coupling between rib cage and abdominal compartments of the relaxed chest wall.
    Author: Deschamps C, Rodarte JR, Wilson TA.
    Journal: J Appl Physiol (1985); 1988 Nov; 65(5):2265-9. PubMed ID: 3209570.
    Abstract:
    The volume displacements of the rib cage and abdomen of relaxed seated subjects were measured as functions of pleural pressure with the chest wall expanded by airway pressure and with the chest wall distorted by an external force applied to the rib cage. From the measured displacements for the two independent loads, the three compliances that describe the mechanical properties of the relaxed chest wall modeled as a linear elastic system with two degrees of freedom were obtained. The cross compliance that describes the coupling between the rib cage and abdomen was found to be small and positive, 0.01-0.02 1/cmH2O. The displacement of the rib cage by the external force was consistent with the displacement predicted by use of standard methods for calculating the mechanical advantage of the force.
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