Table 2.

The alveolar Po2 and Pco2 levels before apneas and at end of apneas

At End of Diving
ParameterIn Ambient AirBefore ApneaImitation 2Imitation 3
Po2, mmHg158.0122.0 ± 12.598.8 ± 11.8*97.6 ± 9.8*
Pco2, mmHg0.2638.6 ± 6.549.1 ± 7.3*49.7 ± 6.7*
  • All data are group means ± SD.

  • * P < 0.05 compared with the control level before apnea (Wilcoxon test).