Effect of different ways of respiratory support on the parameters of respiratory

: We investigated the effect of three types of respiratory support on respiratory parameters in conscious healthy humans. For each type of respiratory support set specific changes in the pattern of volume and temporal parameters. One response to all types of respiratory support was hyperventilating, although varying degrees, and as a consequence, hypocapnia. These changes are not related to the metabolic needs and probably are the result of the interaction mechanisms of automatic and voluntary regulation of breathing movements.