Research Article

An Autonomic Nervous System Model Applied to the Analysis of Orthostatic Tests

Figure 1

Bond graph model of the left ventricle. The calcium concentration variable of the BR model is used as input to a model of the active mechanical activity, which is described by active and passive capacitive elements implementing (3) and (6), respectively. A 1-junction (7) relates active and passive capacitances. This junction is linked to a transformer that describes the change of energy domain from mechanics to hydraulics, as presented in (8).
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