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
|
- aIn gestational week 32
- bValues are means ± standard deviations
- cp for difference between groups using unpaired t-test
- dRepresenting the basal metabolic rate and equivalent to 3.12 ± 0.30 ml O2/kg/min and 3.71 ± 0.33 kJ/kg/h
- eRepresenting the basal metabolic rate and equivalent to 3.34 ± 0.25 ml O2/kg/min and 3.94 ± 0.30 kJ/kg/h
- fn = 21
- gn = 9