Table 3.
Effect of 8-week HIIT on physical fitness, body composition, and blood variables of obese individuals.
| OB |
OBR |
|||
|---|---|---|---|---|
| Pre | Post | Pre | Post | |
| VO2peak (mL min−1 kg−1) | 27.2 ± 6.8 | 30.5 ± 3.4∗ | 24.8 ± 5.9 | 27.4 ± 6.1∗ |
| Peak power (watts) | 170.0 ± 66.0 | 198.0 ± 70.0∗ | 174.0 ± 63.0 | 200.0 ± 73.0∗ |
| Body mass (kg) | 92.4 ± 12.9 | 92.1 ± 13.1 | 106.2 ± 18.4 | 107.0 ± 19.6 |
| BMI (kg/m2) | 35.1 ± 3.8 | 34.9 ± 3.7 | 37.8 ± 4.3 | 38.0 ± 4.7 |
| Body fat (%) | 43.1 ± 8.0 | 42.3 ± 8.0∗ | 44.6 ± 7.6 | 44.3 ± 8.1 |
| WC (cm) | 103.0 ± 13.0 | 102.0 ± 12.0 | 115.0 ± 15.0 | 116.0 ± 13.0 |
| Fat-free mass (kg) | 50.8 ± 10.8 | 51.6 ± 11.1 | 56.9 ± 10.9 | 57.6 ± 11.6∗ |
| Fat mass (kg) | 38.7 ± 9.0 | 37.4 ± 8.5 | 46.4 ± 12.6 | 46.5 ± 13.4 |
| Visceral adipose tissue (g) | 1153 ± 431 | 1072 ± 430 | 1737 ± 720 | 1861 ± 872∗ |
| Fasting insulin (μU/mL) | 8.8 ± 2.5 | 10.5 ± 3.8 | 20.7 ± 5.9 | 15.2 ± 5.4∗ |
| Fasting glucose (mg/dL) # | 84.0 ± 10.0 | 89 ± 11.0 | 87.0 ± 8.0 | 93 ± 8.0 |
| HOMA1-IR (μU L−2) | 1.8 ± 0.5 | 2.3 ± 1.0 | 4.4 ± 1.4 | 3.5 ± 1.2∗ |
| HOMAβ (μU L−2) | 199 ± 129 | 179 ± 128 | 348 ± 144 | 189 ± 83∗ |
| OGTT (mg/dL) | 87.0 ± 15.0 | 85.0 ± 17.0 | 105.0 ± 20.0 | 105.0 ± 22.0 |
| Net AUC glucose (mg/dLxmin) | 2.702 ± 530 | 2.762 ± 458 | 3.602 ± 566 | 4.706 ± 490 |
| Net AUC insulin (mg/dlxmin) | 8.306 ± 2.561 | 7.364 ± 1.673 | 15.380 ± 3.241 | 13.845 ± 2.116 |
| Muscle ISI | 1.29 ± 0.62 | 1.19 ± 0.74 | 0.49 ± 0.44 | 0.54 ± 0.32 |
| Total cholesterol (mg/dL) # | 192 ± 26 | 179 ± 36 | 196 ± 30 | 181 ± 21 |
| LDL-C (mg/dL) # | 121 ± 27 | 103 ± 33 | 124 ± 24 | 113 ± 20 |
| HDL-C (mg/dL) | 50 ± 12 | 56 ± 15 | 41 ± 5 | 41 ± 10 |
| VLDL-C (mg/dL) | 20 ± 11 | 19 ± 6 | 31 ± 11 | 27 ± 11 |
| Triglycerides (mg/dL) | 102 ± 56 | 96 ± 31 | 155 ± 58 | 137 ± 56 |
Data are expressed as mean ± standard deviation. ∗ Indicates difference between Pre- and post-training in the same group; # Indicates a main effect of HIIT intervention independent of the group.