Table 2.
Peak oxygen consumption before and after weight loss intervention (mean ± SD).
| Male |
Female |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Overweight | Obese | p | Observed power | η2 | Overweight | Obese | p | Observed power | η2 | |
| VO2peak (L/min) | ||||||||||
| Baseline | 3.2 ± 0.6 | 3.6 ± 0.6# |
T < 0.001 T × G 0.171 T × BMI 0.002 T × G × BMI 0.127 |
>0.99 0.43 0.89 0.48 |
0.38 0.07 0.13 0.08 |
2.0 ± 0.3 | 2.5 ± 0.4# |
T < 0.001 T × G 0.308 T × BMI 0.001 T × G × BMI 0.332 |
0.96 0.31 0.94 0.30 |
0.15 0.04 0.14 0.04 |
| Post-intervention | 3.7 ± 0.5** | 3.8 ± 0.6* | 2.3 ± 0.4** | 2.5 ± 0.4# | ||||||
| Δ | 0.5 ± 0.4 | 0.2 ± 0.5 | 0.3 ± 0.3 | −0.1 ± 0.3 | ||||||
| VO2peak (mL/kg/min) | ||||||||||
| Baseline | 37.4 ± 6.2 | 36.0 ± 5.9 |
T < 0.001 T × G 0.058 T × BMI 0.007 T × G × BMI 0.482 |
>0.99 0.62 0.78 0.22 |
0.65 0.10 0.10 0.03 |
27.7 ± 3.8 | 28.2 ± 3.3 |
T < 0.001 T × G 0.135 T × BMI 0.001 T × G × BMI 0.477 |
>0.99 0.48 0.93 0.22 |
0.55 0.07 0.13 0.03 |
| Post-intervention | 46.6 ± 5.6** | 41.4 ± 6.9#,** | 33.8 ± 5.6** | 31.0 ± 4.6#,** | ||||||
| Δ | 9.2 ± 5.7 | 5.4 ± 5.6 | 6.1 ± 4.4 | 2.8 ± 4.2 | ||||||
| VO2peak (mL/kgLBM/min) | ||||||||||
| Baseline | 57.9 ± 8.3 | 60.5 ± 8.1# |
T < 0.001 T × G 0.229 T × BMI 0.002 T × G × BMI 0.220 |
>0.99 0.37 0.87 0.38 |
0.41 0.06 0.13 0.06 |
50.7 ± 6.2 | 55.8 ± 6.1# |
T < 0.001 T × G 0.124 T × BMI 0.001 T × G × BMI 0.252 |
>0.99 0.49 0.94 0.36 |
0.22 0.07 0.14 0.05 |
| Post-intervention | 67.3 ± 6.7** | 63.9 ± 7.7** | 57.0 ± 8.4** | 56.5 ± 7.7 | ||||||
| Δ | 9.4 ± 8.1 | 3.4 ± 8.3 | 6.3 ± 6.5 | 0.7 ± 7.3 | ||||||
Note: Data in bold for the p value indicate significant difference.
Abbreviations: BMI = body mass index classification; G = intervention group; T = time; VO2peak = peak oxygen consumption.
*
p < 0.05, **p < 0.001, compared with baseline.
#
p < 0.05, compared with overweight.