Figure 5.

Example of a plot of the stroke volume as function of time (in minutes), according to the HCP (red, continuous line), and LVot Doppler, during the G-suit experiment. The three thick dashed vertical black lines denote the following instances (from left to right, respectively): (i) starting of the inflation pump connected to the G-suit, (ii) maximum pressure reached, (iii) opening of the valve that releases the pressurized air from the G-suit immediately. During inflation of the G-suit, the stroke volume increases. Furthermore, directly after the sudden deflation at 4 minutes and 40 seconds, the stroke volume decreases. This is consistent with data from the literature (e.g. [19]).