Activity | Oxygen consumption (ml/min) | p c | Carbon dioxide production (ml/min) | p c | Energy expenditure (kJ/min) | p c | |||
---|---|---|---|---|---|---|---|---|---|
Non-pregnant | Pregnanta | Non-pregnant | Pregnanta | Non-pregnant | Pregnanta | ||||
Resting | 208 ± 25 | 247 ± 30 | 0.000029 | 169 ± 2 | 192 ± 23 | 0.00078 | 4.10 ± 0.50d | 4.85 ± 0.59e | 0.000037 |
Sitting | 250 ± 25 | 264 ± 42 | 0.184 | 232 ± 23 | 249 ± 44 | 0.120 | 5.15 ± 0.50 | 5.44 ± 0.88 | 0.156 |
Cycling | |||||||||
30 watts | 694 ± 51 | 717 ± 56 | 0.157 | 620 ± 60 | 660 ± 48 | 0.020 | 14.1 ± 1.1 | 14.7 ± 1.1 | 0.096 |
60 watts | 980 ± 62 | 1007 ± 65 | 0.177 | 936 ± 63 | 995 ± 81 | 0.010 | 20.3 ± 1.3 | 21.0 ± 1.4 | 0.082 |
Walking | |||||||||
3.2 km/h | 699 ± 110 | 731 ± 105 | 0.332 | 614 ± 107 | 636 ± 93 | 0.470 | 14.2 ± 2.3 | 14.9 ± 2.1 | 0.355 |
5.6 km/h | 1082 ± 179 | 1194±139f | 0.028 | 1012 ± 193 | 1122±167f | 0.054 | 22.3 ± 3.8 | 24.6 ± 3.0f | 0.032 |
Running | |||||||||
8 km/h | 1958±290f | 1948±200g | 0.931 | 2045±359f | 2041±301g | 0.980 | 41.3 ± 6.2f | 41.2 ± 4.6g | 0.943 |