The close correlations between anatomo-functional data and clinical
aspects are substantiated by the study and interpretation of the data of
respiratory mechan- ics. This field has developed to such an extent
that, today, it is hard to single out one researcher who is an expert of
the whole sector, whereas super experts can be found among scholars who,
thanks to their studies and continuous comparisons, have contributed to
the widening of knowledge and the development of that part of research
which correlates some basic disciplines with clinical medicine. This
notion is of paramount importance. Indeed, it has to be regarded as a
starting point requiring a more precise definition. The analysis of data
concern- ing ventilation parameters is based on the use of mathematical
models that are necessary to simplify the complexity of the various
clinical situations. For a cor- rect application and interpretation of
data, the most recent technological acquisi- tions in terms of
ventilatory support require to be used as a function of simple
mathematical models for the study, control and evolution of the lung
diseases that concern the ICU. Thus, the need has arisen to compare the
experience acquired in the field of applied physiology and in the
clinical sector.