Metabolic profiles and the respective contribution of lipid to total energy yield at rest and during exercise
| Preintervention (baseline) | Postintervention | |||
| Control (n=12) (f=7, m=5) | Trained (n=12) (f=6, m=6) | Control (n=12) (f=7, m=5) | Trained (n=12) (f=6, m=6) | |
| Aerobic fitness indicators | ||||
| HR peak (beats.min−1) | 196 (12) | 196 (09) | 197 (16) | 198 (12) |
| RER peak | 1.1 (0.1) | 1.1 (0.3) | 1.1 (0.3) | 1.1 (0.2) |
| VO2max (L.min−1) | 2.3 (0.3) | 2.2 (0.4) | 2.3 (0.4) | 2.3 (0.1) |
| VO2max (mL.min−1.kg−1) | 23.4 (8.4) | 22.6 (6.4) | 22.2 (7.4) | 23.1 (6.1) |
| Metabolic analysis | ||||
| Glucose (mmol/L) | 4.61 (0.11) | 4.64 (0.12) | 4.64 (0.15) | 4.32 (0.22)** |
| Insulin (µmol/mL) | 22.6 (4.6) | 23.2 (4.6) | 23.2 (4.6) | 13.8 (3.3)** |
| HOMA-IR | 4.63 (1.7) | 4.78 (1.2) | 4.78 (1.2) | 2.65 (1.5)** |
| Lipid contribution (%) | ||||
| Rest | 58 (10) | 57 (9) | 57 (11) | 68 (4)** |
| 25 W | 47 (9) | 47 (8) | 48 (10) | 73 (13)** |
| 50 W | 23 (5) | 24 (5) | 24 (5) | 45 (5)** |
| 75 W | 11(2) | 11(4) | 11(4) | 25(2)** |
Values are mean±SD.
**p<0.01; significant difference from baseline.
f, female; HOMA-IR, homoeostasis model assessment index of insulin resistance; HR, heart rate; m, men; RER, respiratory exchange ratio; VO2max, maximal oxygen consumption.