Table 2.
Arterial concentrations for glucose, lactate, NEFA and glycerol before (rest) and at each step during the two-legged concentric exercise
| Glucose (mmol l−1) | Lactate (mmol l−1) | Mean lactate (mmol l−1) | NEFA (μmol l−1) | Glycerol (μmol l−1) | Mean glycerol (μmol l−1) | ||
|---|---|---|---|---|---|---|---|
| Rest | 4.9 ± 0.1 | 0.4 ± 0.0 | 0.4 ± 0.0 | 423 ± 85 | 78 ± 12 | 78 ± 12 | |
| Step 1 | 10 min | 5.0 ± 0.2 | 1.6 ± 0.1 | − | 394 ± 66 | 115 ± 14 | — |
| 20 min | 4.9 ± 0.3 | 1.6 ± 0.2 | 1.6 ± 0.2* | 395 ± 87 | 116 ± 13 | 117 ± 12* | |
| 25 min | 4.9 ± 0.3 | 1.4 ± 0.2 | − | 434 ± 89 | 125 ± 12 | − | |
| Step 2 | 10 min | 4.9 ± 0.3 | 2.5 ± 0.2 | − | 439 ± 83 | 129 ± 13 | — |
| 20 min | 4.9 ± 0.3 | 2.8 ± 0.2 | 2.7 ± 0.2* | 464 ± 95 | 137 ± 15 | 136 ± 14* | |
| 25 min | 5.0 ± 0.3 | 2.9 ± 0.2 | − | 510 ± 105 | 160 ± 20 | — |
Values are means ±s.e.m. of 7 observations in each group. Mean lactate and glycerol represent the mean values for each step (rest, step 1 and step 2).
*
Mean value is significantly different from the mean value on the previous step.