Figure 5. Change in compliance of the total respiratory system by recruitment maneuver (C^rs) versus amount of atelectasis before recruitment. C^rsafter recruitment is expressed as percentage of C sub rs before recruitment, open circle Group 1 (FI^O2after recruitment = 0.4). (closed circle) Group 2 (FI^O2after recruitment = 1.0). There is no correlation between change in compliance and atelectasis.