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Table 1 Respitatory gas parameters

From: Successive exposure to moderate hypoxia does not affect glucose metabolism and substrate oxidation in young healthy men

   1 h 2 h 3 h 4 h 5 h 6 h 7 h Average
V ˙ O2 (ml/min) Normoxia 254 ± 10 268 ± 12 267 ± 15 266 ± 18 282 ± 13* 271 ± 11 294 ± 17* 272 ± 13
Hypoxia 251 ± 15 278 ± 15* 291 ± 19*† 272 ± 15 285 ± 17* 291 ± 13* 272 ± 9 277 ± 14
V ˙ CO2 (ml/min) Normoxia 211 ± 10 222 ± 10 221 ± 12 224 ± 16 244 ± 14* 239 ± 10* 260 ± 12* 232 ± 11
Hypoxia 198 ± 14 225 ± 15 241 ± 17*† 234 ± 15* 246 ± 16* 256 ± 11*† 245 ± 9 235 ± 13
V ˙ E (ml/min) Normoxia 8.5 ± 0.4 7.9 ± 0.4 8.0 ± 0.5 8.6 ± 0.7 8.6 ± 0.6 9.0 ± 0.4 9.6 ± 0.4 8.6 ± 0.4
Hypoxia 8.7 ± 0.5 9.1 ± 0.5* 10.0 ± 0.5*† 9.9 ± 0.6*† 10.4 ± 0.6*† 10.4 ± 0.4 10.1 ± 0.5* 9.8 ± 0.5†
RER Normoxia 0.83 ± 0.02 0.82 ± 0.01 0.83 ± 0.01 0.84 ± 0.01 0.86 ± 0.02 0.88 ± 0.02 0.89 ± 0.03 0.85 ± 0.01
Hypoxia 0.78 ± 0.02 0.81 ± 0.02 0.83 ± 0.02 0.86 ± 0.02* 0.85 ± 0.02* 0.88 ± 0.01* 0.89 ± 0.01* 0.85 ± 0.01
  1. Mean ± SE. *P < 0.05 vs. 1 h. P < 0.05 vs. Normoxia.