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. 2016 Aug 8;5(1):1294. doi: 10.1186/s40064-016-2952-4

Fig. 1.

Fig. 1

Changes 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