Fig. 1From: Effects of various acute hypoxic conditions on metabolic parameters and cardiac function during exercise and recoveryChanges in metabolic parameters at rest, exercise time, and recovery time for all the conditions. a change in SPO2 (%). b change in VO2 (mL/kg/min). c change in blood lactate level (mmol/L). The bars indicate the mean ± S.D. A p < .05 vs. 20.9 % O2, B p < .05 vs. 16.5 % O2, C p < .05 vs. 14.5 % O2, D p < .05 vs. 12.8 % O2 Back to article page