Table 3. Average values (±SD) of blood parameters and differences between measurements during the first minute after the swimming test and measurements before the swimming test (∆) in the RS group. Before After (1st min) After (3rd min) ∆ Po2 (kPa) 11.0 (1.7) 11.0 (1.1) 13.7 (2.6) .0 (1.7) Pco2 (kPa) 4.8 (.4) 5.2 (.6) 4.2 (.4) .4 (.5) pH 7.40 (.03) 7.17 (.07) 7.13 (.07) -.23 (.06) ** [LA] (mmol/l) 3.1 (.7) 13.8 (1.3) 15.1 (1.4) 10.7 (1.3) ** ** denote p < 0.01 between the values measured before and during the first minute after the swimming test.