It is interesting to observe how the PTP permits the “visualization” of the equation of movement. The equation is:

Pm = PEEPi+Ers.V+Rrs.F

If the PTP is cut at a given moment, it can be seen how each one of the segments of the cut corresponds with one segment of the equation of movement. Which is to say that the areas of the PTP is the equation of movement in time.

 

PTP Ecuación de Movimiento